Document:

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                                                                  Exhibit 10.153

                            STOCK PURCHASE AGREEMENT

         THIS STOCK PURCHASE AGREEMENT (the "Agreement") is made and entered
into as of February 12, 2004, by and between OPTIMUMCARE CORPORATION, a Delaware
corporation ("Buyer"), DR. ROBERT M. BABCOCK ("Dr. Babcock") and HEIDI PATERSON
("Paterson") with respect to all of the outstanding capital stock of FRIENDSHIP
COMMUNITY MENTAL HEALTH CENTER, INC., an Arizona corporation (the "Company").
Dr. Babcock and Paterson are referred to herein individually as a "Seller" and
collectively as "Sellers").

                                 R E C I T A L S

         A.       The Company is a Center for Medicare and Medicaid Services
("CMS") certified community mental health center operating a Partial
Hospitalization Program (PHP), as well as other required services.

         B.       Each Seller owns, of record and beneficially, five hundred
(500) shares of capital stock of the Company representing all of the issued and
outstanding shares of capital stock of the Company (the "Shares"); and

         C.       Sellers desire to sell and Buyer desires to purchase the
Shares on the terms and subject to the conditions set forth below.

         NOW, THEREFORE, in consideration of the mutual covenants, agreements,
representations and warranties contained in this Agreement, the parties hereby
agree as follows:

                                    ARTICLE 1
                           PURCHASE AND SALE OF SHARES

         1.1      Purchase and Sale of Shares. On the terms and subject to the
conditions of this Agreement, Sellers agree to sell, assign, transfer and convey
the Shares to Buyer and Buyer agrees to purchase the Shares from Sellers. The
purchase and sale of the Shares shall be consummated on the Closing Date (as
hereinafter defined).

         1.2      The Purchase Price. The aggregate purchase price for the
Shares (the "Purchase Price") will be $90,000, one-half of which will be paid to
each Seller. The Purchase Price will be paid by Buyer in monthly installments of
$2,500 to each Seller ($5,000 in the aggregate) commencing (i) on March 31, 2004
if the Closing occurs on or before February 14, 2004, or (ii) on the last day of
the first full month following the Closing Date if the Closing occurs after
February 14, 2004, and continuing on the last day of each successive month
thereafter until the Purchase Price is paid in full. Buyer will mail the monthly
installment payments to Sellers address as identified in Section 10.2. The
postmark date will be used to determine that monthly installment payments are
paid in compliance with this Section. In the event Buyer fails to make any
payment when due and to cure such default within thirty (30) days following the
receipt of written notice of such default from Seller, then the entire remaining
portion of the unpaid purchase price will be immediately due and payable to
Sellers. A Breach Event is created when

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Buyer fails to pay a payment in accordance with this section. No more than three
(3) Breach Events will be permitted. Upon the fourth (4th) Breach Event, the
entire remaining portion of the unpaid purchase price will be immediately due
and payable to Sellers.

         1.3      Closing. The closing of the transactions contemplated by this
Agreement (the "Closing") will occur concurrently with the execution of this
Agreement or such other date mutually agreed upon by the parties as soon as
reasonably practicable following the satisfaction or written waiver of the
conditions set forth in Article 6 hereof (the date on which the Closing occurs
is referred to herein as the "Closing Date"). At the Closing, Sellers shall
deliver to Buyer:

                  (a)      Certificates representing the Shares to be purchased
and sold hereunder, registered in the name of Sellers and duly and validly
endorsed by Sellers for transfer to Buyer free of any encumbrance or restriction
whatsoever (other than restrictions on resale arising under federal or state
securities laws);

                  (b)      The duly executed resignations of all directors and
         officers of the Company, in form and content satisfactory to Buyer and
         its counsel, and effective as of the Closing; and

                  (c)      The concurrence of the spouse, if any, of each Seller
         in the form attached hereto.

                                    ARTICLE 2
                    REPRESENTATIONS AND WARRANTIES OF SELLERS

         In order to induce Buyer to enter into this Agreement and to purchase
the Shares, Sellers jointly and severally make the representations and
warranties set forth in this Article 2 which representations and warranties will
be true and correct on the date of this Agreement and on the Closing Date.
Except as specifically stated herein, Seller is not providing any other
representations or warranties about the Company. Seller makes no representation
or warranty concerning events which occur following the Closing which may affect
the continuing accuracy of the representations and warranties set forth in this
Article 2 following the Closing Date.

         2.1      Organization; Good Standing. The Company is a corporation duly
organized, validly existing, and in good standing under the laws of the State of
Arizona, and has all requisite corporate power and authority to own and operate
its properties and assets and to carry on its business as now conducted.

         2.2      Capitalization of the Company. The authorized capital stock of
the Company consists of one hundred thousand (100,000) shares of common stock,
one dollar ($1.00) par value, of which 1,000 shares are issued and outstanding.
There are no other shares of capital stock issued and outstanding, no shares of
treasury stock, and no outstanding securities convertible into or exchangeable
for any of the Company's capital stock or options, warrants, calls or other
rights, with respect to the issued capital stock of the Company, or to purchase
or subscribe to capital stock of the Company or securities convertible into or
exchangeable for capital stock of the Company. Sellers are not a party to any
voting trust agreement or other contract, agreement, arrangement, commitment,
plan, or understanding restricting or otherwise relating to the Shares.

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         2.3      Authority. This Agreement has been duly and validly authorized
by all necessary action of Sellers. No action, consent or approval by or filing
with any person or entity, including, without limitation, any federal,
territorial, state, municipal, foreign or other court or governmental or
administrative body or agency or any securities or commodities exchange is
required in connection with the execution, delivery and performance by Sellers
of this Agreement, and consummation by Sellers of the transactions contemplated
herein. Without limiting the generality of the foregoing, Sellers have full
power and authority to enter into this Agreement and to carry out the
transactions contemplated hereby. This Agreement is the legal, valid and binding
obligation of Sellers enforceable in accordance with its terms, except as such
enforceability may be limited by bankruptcy, insolvency or similar laws
affecting the rights of creditors generally.

         2.4      Financial Statements; No Undisclosed Liabilities. Schedule 2.4
hereto contains true and complete copies of the unaudited balance sheet and
statement of income (loss) of the Company at and for the fiscal year ended June
30, 2003 and any subsequent interim periods, if available (hereinafter referred
to as the "Financial Statements"). Except as otherwise disclosed to Buyer in
writing prior to the Closing, the Company does not have any material liabilities
or obligations of any nature (absolute, accrued, contingent or otherwise) which
were not reflected or reserved against on the Financial Statements, except for
liabilities and obligations incurred since the date thereof in the ordinary
course of the Company's business and consistent with past practice and which, in
any event, in the aggregate, would not have a material adverse effect on the
financial condition or business of the Company. Also included in Schedule 2.4 is
a complete and accurate list of all known liabilities of the Company as of the
date of this Agreement, including without limitation, all accounts payable,
accrued wages and vacation, unfunded healthcare liabilities and other personnel
costs, payments, withholdings or other obligations to Blue Cross of Arizona
and/or the Centers of Medicare and Medicaid Service and all other liabilities
and obligations, whether absolute, contingent, direct, indirect, accrued or
otherwise. Buyer agrees that disclosures are not limited to only Schedule 2.4,
but include disclosures made in other Sections of this Agreement.

         2.5      Absence of Certain Actions. Sellers have not on behalf of
Sellers or the Company:

                  (a)      Taken any action, other than in the ordinary course
of business, which might reasonably be expected to have a material adverse
effect on the business or financial condition of the Company;

                  (b)      Incurred any short-term or long-term liabilities or
obligations (absolute, accrued, contingent or otherwise) other than in the
ordinary course of business and consistent with past practice;

                  (c)      Subjected any of the Company's property or assets
(real, personal or mixed, tangible or intangible) to any mortgage, pledge, lien,
security interest, encumbrance, restriction or charge of any kind;

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                  (d)      Canceled any debts or waived any claims or rights of
material value to the Company or agreed on behalf of Sellers or the Company to
reduce or otherwise modify the payment terms of any account receivable owing to
the Company;

                  (e)      Sold, transferred or otherwise disposed of any of the
Company's properties or assets (real, personal or mixed, tangible or
intangible), except in the ordinary course of business and consistent with past
practice; or

                  (f)      Agreed, whether in writing or otherwise, to take any
action described in this Section 2.5.

         2.6      No Claims Based on Sellers' Acts. Except as otherwise
disclosed to Buyer in Schedule 2.6, there is no threatened charge or claim
relating to or affecting: (i) the Company or Sellers in their capacities as
directors, officers, employees or agents of the Company or (ii) the assets,
properties or business of the Company, nor is there any basis for any such
charge or claim based on the affirmative acts of Sellers which could have an
adverse effect on the assets, property or business of the Company.

         2.7      Permits. The Company has all franchises, permits, licenses,
and any similar authority necessary for the conduct of its business as now being
conducted the lack of which could materially and adversely affect the business,
properties, prospects or financial condition of the Company, and as of the
Closing Date, no such franchises, permits and licenses, including the Company's
Medicare provider number, will be rendered void, made subject to restrictions or
otherwise adversely affected by the consummation of the transactions
contemplated hereby.

         2.8      Compliance with Other Instruments. As of the Closing Date, the
Company is not in violation or default in any material respect of any provision
of its Articles of Incorporation, Bylaws or any material contract to which it is
a party or by which it is bound or, to the best of its knowledge, of any federal
or state judgment, order, writ, decree, statute, rule or regulation applicable
to the Company.

         2.9      Litigation. As of the Closing Date, there are no actions,
suits, proceedings or investigations pending or currently threatened against the
Company that might have, either individually or in the aggregate, any material
adverse affect on the assets, business properties, prospects or financial
condition of the Company, or in any material change in the current equity
ownership of the Company, except as identified in Schedule 2.9.

         2.10     Title to Property and Assets; Leases. Except as reflected in
the Financial Statements, the Company owns its property and assets free and
clear of all mortgages, liens, claims and encumbrances.

         2.11     Environmental and Safety Laws. The Company is not in violation
of any applicable statute, law, or regulation relating to the environment or
occupational health and safety, and no material expenditures are or will be
required in order to comply with any such existing statute, law, or regulation.

         2.12     Employee Benefit Plans. All employee benefit plans, as defined
in the Employee Retirement Income Security Act of 1974, as amended ("ERISA"),
and any other employee

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benefit plan or fringe benefit arrangement of any nature whatsoever established,
maintained or contributed to by the Company comply in all material respects with
the requirements of all applicable laws, including but not limited to ERISA, and
no employee pension benefit plan (as defined in ERISA) has incurred or assumed
an "accumulated funding deficiency" as defined by ERISA or has incurred or
assumed any material liability (other than for the payment of premiums) to the
Pension Benefit Guaranty Corporation.

         2.13     Tax Returns. As of the Closing Date, the Company has filed all
tax returns and reports as required by law. These returns and reports are true
and correct in all material respects. The Company has paid all taxes and other
assessments due (other than those which are being contested in good faith by the
Company). The provision for taxes of the Company is adequate for taxes due or
accrued as of the date hereof, except as noted in Schedule 2.13. The Company's
tax returns have never been audited by the Internal Revenue Service or any other
government agency. As of the Closing Date, Seller has not been made aware of any
pending tax return audits by any government agency. Seller makes no
representation or warranty with respect to tax returns filed by the prior owners
of the Company.

         2.14     Medicare Holdbacks, etc. As of the Closing Date, the aggregate
amount of all holdbacks, payments, obligations and other liabilities of or
relating to the Company pursuant to that certain extended repayment schedule and
investigation referenced in the letter from Centers for Medicare and Medicaid
Services attached as Schedule 2.14 plus the amount of all holdbacks, payments,
obligations and other liabilities of or relating to the Company with respect to
the Arizona Health Care Cost Containment System are $279,541.61 plus an
estimated $100,000 further holdback identified by Blue Cross of Arizona
personnel to Buyer and Seller on February 5, 2004 plus estimated interest and
penalties through February 2004 of $10,000. All cost reports filed by Sellers
for the Company have been found to be acceptable to CMS/Medicare. Sellers
believe all filed cost reports filed by Sellers for the Company are true,
correct, and have been prepared in compliance with all applicable governmental
rules and regulations. Sellers make no representations or warranties concerning
cost reports filed by the prior owners of the Company.

         2.15     Accuracy of Information. As of the Closing Date, no
representation or warranty by Sellers contained in this Agreement or in respect
of the exhibits, schedules, lists or other documents delivered to Buyer and
referred to herein, and no statement contained in any certificate furnished or
to be furnished by or on behalf of Sellers pursuant hereto, or in connection
with the transactions contemplated hereby, contains, or will contain as of the
date such representation or warranty is made or such certificate is or will be
furnished, any statement of a material fact known by Sellers to be untrue, or
omits, or will omit to state as of the date such representation or warranty is
made or such certificate is or will be furnished, any material fact which is
necessary to make the statements contained herein or therein, in light of the
circumstances under which they were made, not misleading.

                                    ARTICLE 3
                                      TITLE

         In order to induce Buyer to enter into this Agreement, to purchase the
Shares and to consummate the transactions contemplated herein, Sellers represent
and warrant to Buyer that they are the owners, beneficially and of record, of
the Shares and have good, valid and

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marketable title to the Shares free and clear of all liens, encumbrances,
security interests or claims, whatsoever, with full power and authority to
deliver the Shares to Buyer in accordance with the terms of this Agreement.
Sellers will convey to Buyer at the Closing good, valid and marketable title to
the Shares free and clear of all liens, encumbrances, security interests,
restrictions or claims whatsoever.

                                    ARTICLE 4
                     REPRESENTATIONS AND WARRANTIES OF BUYER

         In order to induce Sellers to enter into this Agreement and to sell the
Shares and consummate the other transactions contemplated herein, Buyer makes
the representations and warranties set forth in this Article 4.

         4.1      Authority. This Agreement has been duly and validly authorized
by all necessary action of Buyer. No action, consent or approval by or filing
with any person or entity, including, without limitation, any federal,
territorial, state, municipal, foreign or other court or governmental or
administrative body or agency or any securities or commodities exchange is
required in connection with the execution, delivery and performance by Buyer of
this Agreement and consummation by Buyer of the transactions contemplated
herein. Without limiting the generality of the foregoing, Buyer has full power
and authority to enter into this Agreement and to carry out the transactions
contemplated hereby and thereby. This Agreement is the legal, valid and binding
obligation of Buyer enforceable in accordance with its terms, except as such
enforceability may be limited by bankruptcy, insolvency or similar laws
affecting the rights of creditors generally.

         4.2      Accuracy of Information Furnished. No representation or
warranty by Buyer contained in this Agreement or in respect of the exhibits,
schedules, lists or other documents delivered to Sellers and referred to herein,
and no statement contained in any certificate furnished or to be furnished by or
on behalf of Buyer pursuant hereto, or in connection with the transactions
contemplated hereby, contains, or will contain as of the date such
representation or warranty is made or such certificate is or will be furnished,
any untrue statement of a material fact, or omits, or will omit to state as of
the date such representation or warranty is made or such certificate is or will
be furnished, any material fact which is necessary to make the statements
contained herein or therein, in light of the circumstances under which they were
made, not misleading.

                                    ARTICLE 5
                             BUYER ACKNOWLEDGEMENTS

         Buyer acknowledges the following:

         5.1      PHP Requirements Subject to Change. The PHP requirements are
subject to change at the discretion of CMS/Medicare. Any subsequent changes to
the PHP requirements by CMS/Medicare will have no effect on Buyer's obligation
to pay Sellers the Purchase Price.

         5.2      Buyer is Purchasing All Operations. By purchasing the Shares,
Buyer is acquiring the entire business of the Company including but not limited
to the the PHP program.

<PAGE>

         5.3      Acknowledgement of Risk. Buyer acknowledges that operating a
community mental health center is difficult and can be considered to be a
high-risk venture. Buyer acknowledges that the Company may lose significant sums
of money in operating a community mental health center.

         5.4      Due Diligence. Prior to Closing, Buyer will have completed its
due diligence investigation to its satisfaction. Prior to Closing, Buyer will
have been given the opportunity to examine the Company's financial statements
and to speak with the Company's financial consultants.

         5.5      Tolling Agreement. Seller has represented to Buyer and Buyer
understands that a written tolling agreement with respect to the statue of
limitations is in effect between the Company and the United States Attorney.
Sellers have represented and Buyer understands that the tolling agreement has
been entered into as a result of possible criminal activities by previous
owners, and Sellers have entered into the tolling agreement to ensure the
Company would not be indicted. Buyer acknowledges that Sellers make no other
representations or warranties concerning the tolling agreement.

         5.6      License Approval based on Change in Ownership. Buyer
acknowledges that following the Closing Buyer is required to submit
documentation to the Centers for Medicare and Medicaid ("CMS") reporting a
change of ownership of the Company. Buyer acknowledges that it has sole
responsibility for contacting CMS prior to the Closing Date to ensure following
the Closing, the Company will comply with all CMS requirements. Buyer
acknowledges that only CMS can complete the transfer of the Medicare provider
license and that Sellers have made no representation or warranty with respect to
the transfer of the Medicare provider license except as specifically stated
herein.

         5.7      Annual Cost Report. Buyer acknowledges that CMS requires the
Company to file an annual cost report and that Sellers have represented that all
required cost reports have been filed within the required time. Buyer
acknowledges that cost reports are subject to audit by CMS (or their
representative), and may be adjusted by CMS. Buyer acknowledges that adjustments
to cost reports filed by prior owners of the Company may have a positive or
negative effect on cost reports filed by Sellers. Buyer acknowledges that the
current Medicare holdbacks are a direct result of Medicare adjustments to Cost
Reports filed by the prior owners of the Company.

                                    ARTICLE 6
                              COVENANTS OF SELLERS

         6.1      Non-Competition. Buyer and Sellers agree that Sellers, by
virtue of their position and employment with the Company, have had extensive
exposure to and knowledge of the Company's servicing and marketing techniques,
patient relationships, billing arrangements, trade secrets and/or know-how.
Therefore, Sellers agree that, except as provided herein, for a period of three
(3) years following the Closing Date ("Non-Competition Period"), they will not,
directly or indirectly, either individually or as an employee, agent, partner,
shareholder, consultant or in any other capacity, participate in, engage in or
have a direct or indirect financial or other interest in any mental health
business located within a fifty (50) mile radius of 730 East Highland, Phoenix,
Arizona 85014 (the "Protected Area") which is competitive with the business in
which

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the Company is presently engaged or conduct any solicitation of mental health
business from existing or prospective patients within the Protected Area. The
ownership of 1% or less of the capital stock of a corporation whose shares are
traded in an organized public securities market, even though that corporation
may have a competitive business as aforesaid, shall not be a violation of this
covenant. In addition, Sellers agree that Sellers shall not solicit for
employment or seek to induce any employees of the Company to leave the
employment of the Company for a period of twelve (12) months following the
Closing Date.

         6.2      Construction. If the restrictions set forth in Section 6.1,
for any reason whatsoever, are declared invalid by a court of competent
jurisdiction, the validity or enforceability of the remainder of such
restrictions shall not be adversely affected thereby. Sellers agree that the
foregoing territorial and time limitations are reasonable and properly required
for the adequate protection of the business of the Company and that in the event
that any such territorial or time limitation is deemed to be unreasonable by a
court of competent jurisdiction, then Sellers agree and submit to the reduction
of either said territorial or time limitation to such an area or period as said
court shall deem reasonable.

         6.3      Injunctive Relief. Sellers and Buyer agree that it would be
extremely difficult or impracticable to measure damage to Buyer and the Company
from any breach by Sellers of the agreements and covenants set forth in Section
6.1, that injury to Buyer and the Company from any such breach would be
incalculable and irremediable and that money damages would therefore be an
inadequate remedy for any such breach. Accordingly, Sellers agree that if
Sellers breach the provisions of Section 6.1 in any respect, Buyer shall be
entitled, in addition to all other remedies, including, but not limited to,
monetary damages Buyer may have, to a temporary restraining order and to a
preliminary and a permanent injunction to restrain any such breach of Sellers,
without showing or proving any actual damage sustained. Sellers acknowledge and
agree that the restrictions set forth in Section 6.1 are made for and intended
for the benefit of Buyer and the Company and may be enforced by Buyer or the
Company, acting jointly or severally.

         6.4      Assistance with Medicare Provider License. Sellers agree to
use their best efforts in providing Buyer with any and all assistance reasonably
necessary for Buyer to complete the process of Medicare provider license
transfer/change of ownership approval.

         6.5      Further Assurance. Sellers agrees that at any time, and from
time to time after the Closing Date, Sellers will execute and deliver to any
other party such further instruments or documents as may reasonably be required
to give effect to the transactions contemplated hereby.

                                    ARTICLE 7
                              ADDITIONAL AGREEMENTS

         7.1      Automobiles. Buyer acknowledges and agrees that Sellers shall
be entitled to an assignment from the Company of all right, title and interest
of the Company in and to the automobiles in use by the Sellers, respectively, as
of the date of this Agreement, notwithstanding that such automobiles are
recorded on the Company's Financial Statements as assets of the Company.

<PAGE>

         7.2      Forgiveness of Indebtedness. Buyer acknowledges that it has
been informed by Sellers that both Sellers received loans from the Company in
calendar year 2003 totaling $60,000 to each Seller ($120,000 total to Sellers).
Buyer and Sellers agree that such loans shall be treated as outstanding loans on
the books of the Company by Buyer, and Buyer agrees to forgive $30,000 per loan
per Seller in each of 2004 and 2005, if such treatment is permitted by generally
accepted accounting principles or if not, to forgive $60,000 per loan per Seller
in 2004.. Sellers acknowledge that they understand this debt forgiveness will be
reported as income to Sellers to the appropriate tax authorities on a form 1099
and Sellers will be responsible for any personal income taxes (federal, state,
and local) assessed to Sellers on such income as reported. Buyer agrees that it
will be responsible for any other taxes or penalties associated with this debt
forgiveness.

         7.3      Consulting Arrangements. Buyer agrees to cause the Company to
engage Sellers as independent consultants to the Company for a period of thirty
(30) days following the Closing. Sellers will act as independent contractors in
performance of their consulting duties. Sellers will provide general management
consulting including but not limited to consulting with respect to issues
related to the running of and financial and operational activities of the
Company and will provide such other consulting services as requested by the
President of the Company. Sellers agree to provide such written or verbal
reports as requested by the President of the Company. Each Seller agrees to be
available for consulting services either in person or by telephone for a period
of thirty (30) calendar days following the Closing. For such services, Buyer
agrees to cause the Company to pay each Seller the amount of Eleven Thousand Two
Hundred Fifty Dollars ($11,250) within seven business days following the
Closing.

                                    ARTICLE 8
                          BUYER'S CONDITIONS TO CLOSING

         The obligations of Buyer under this Agreement are subject to the
fulfillment on or before the Closing Date of each of the following conditions,
the waiver of which shall not be effective against Buyer unless such waiver is
in writing:

         8.1      Short Period Tax Returns. Seller will cause the Company to (i)
recognize forgiveness of debt income with respect to all amounts previously owed
by the Company to Buyer, and (ii) either (a) file a short period federal income
tax return and, if necessary, state and local income tax returns for the period
ending as of the Closing Date or (b) file an amended tax return for the fiscal
year ended June 30, 2003 to reflect the forgiveness of debt income described
above. Such tax returns will be prepared at the direction of the Sellers and
will be signed by the Sellers with copies provided to Buyer.

         8.2      Medicare Holdbacks, etc. As of the Closing Date, the aggregate
amount of all holdbacks, payments, obligations and other liabilities of or
relating to the Company pursuant to that certain extended repayment schedule and
investigation referenced in the letter from Centers for Medicare and Medicaid
Services attached as Schedule 2.14 plus the amount of all holdbacks, payments,
obligations and other liabilities of or relating to the Company with respect to
the Arizona Health Care Cost Containment System will not exceed $279,541.61 plus
an estimated $100,000 further holdback identified by Blue Cross of Arizona
personnel to Buyer and Seller on February 5, 2004 plus estimated interest and
penalties through February 2004 of $10,000.

<PAGE>

         8.3      Transfer of Medicare Provider License. Sellers will have
provided Buyer with such documents (or other evidence as Buyer may, in its sole
discretion, require to indicate to the Buyer's satisfaction that the Company's
Medicare provider number will not be rendered void, made subject to restrictions
or otherwise adversely affected by the consummation of the transactions
contemplated hereby.

         8.4      Liabilities. Sellers will have provided an updated list of all
liabilities of the Company required to be delivered pursuant to Section 2.4 made
current as of the Closing Date.

                                    ARTICLE 9
                                 INDEMNIFICATION

         9.1      Seller Warranty Claims. From and after the Closing, Sellers
shall jointly and severally indemnify and hold harmless Buyer, and its
successors and assigns, agents and affiliates (collectively, "Buyer
Indemnitees") against, and in respect of any out of pocket loss, any and all
damages, claims, losses, liabilities and expenses, including, without
limitation, legal, accounting and other expenses, which may arise out of: (i)
any breach or violation of this Agreement by Sellers; or (ii) any breach of any
of the representations, warranties or covenants made in this Agreement by
Sellers; or (iii) any inaccuracy or misrepresentation in the Schedules hereto or
in any certificate or document delivered in accordance with the terms of
Agreement by Sellers (collectively, "Claims").

         9.2      Buyer Warranty Claims. From and after the Closing, Buyer shall
indemnify and hold harmless Sellers, and their successors and assigns, agents
and affiliates (collectively, "Seller Indemnitees") against, and in respect of
any out of pocket loss, any and all damages, claims, losses, liabilities and
expenses, including, without limitation, legal, accounting and other expenses,
which may arise out of: (i) any breach or violation of this Agreement by Buyer;
or (ii) any breach of any of the representations, warranties or covenants made
in this Agreement by the Buyer; or (iii) any inaccuracy or misrepresentation in
the Schedules hereto or in any certificate or document delivered in accordance
with the terms of Agreement by Buyer or (iv) the operation of the Company
following the Closing (collectively, "Claims").

         9.3      Indemnification Procedure.

                  (a)      In order for a party (the "Indemnified Party") to be
entitled to any indemnification provided for under this Agreement in respect of,
arising out of or involving any Claims, such Indemnified Party must notify the
Indemnifying Party in writing, by certified mail, of the Claim within thirty
(30) business days after such Indemnified Party learns of the Claim, provided,
however, that failure to give such notification shall not affect the
indemnification provided hereunder except to the extent the Indemnifying Party
can demonstrate actual monetary prejudice as a direct or indirect result of such
failure. Thereafter, the Indemnified Party shall deliver to the Indemnifying
Party, within twenty (20) business days' time after the Indemnified Party's
receipt thereof, copies of all notices and documents (including court papers)
received by the Indemnified Party relating to the Claim.

<PAGE>

                  (b)      If a Claim is made against an Indemnified Party, the
Indemnifying Party will be entitled to participate in the defense thereof and,
if it so chooses, to assume the defense thereof with counsel selected by the
Indemnifying Party, but reasonably satisfactory to the Indemnified Party. Should
the Indemnifying Party so elect to assume the defense of a Claim which is not
based upon a theory of successor liability, the Indemnifying Party will not be
liable to the Indemnified Party for any legal expenses subsequently incurred by
the Indemnified Party in connection with the defense thereof. In the case of a
Claim that is based upon a theory of successor liability and in which the
Indemnified Party is a co-defendant with the Indemnifying Party, the Indemnified
Party shall be entitled to be compensated for its reasonable expense in
defending such claim regardless of the offer to assume such defense. If the
Indemnifying Party assumes such defense, the Indemnified Party shall have the
right to participate in the defense thereof and to employ counsel, which shall
be at its own expense, unless the parties are co-defendants, in which case the
Indemnifying Party shall bear such expense separate from the counsel employed by
the Indemnifying Party. The Indemnifying Party shall be liable for the fees and
expenses of counsel employed by the Indemnified Party for any period during
which the Indemnifying Party has not assumed the defense thereof (other than
after the twenty (20)-day period described in Section 9.3(a) if the Indemnified
Party shall have failed to give notice of the Claim). If the Indemnifying Party
chooses to defend or prosecute a Claim, all the parties hereto shall cooperate
in the defense or prosecution thereof. Such cooperation shall include the
retention and provision of records (upon the Indemnifying Party's request) and
the provision of information which is reasonably relevant to such Claim, and
making employees available on a mutually convenient basis when and where
reasonably required to provide additional information and explanation of any
material provided hereunder.

                  (c)      With respect to any Claim by any person against an
Indemnified Party where the amount in dispute is equal to or less than One
Thousand Dollars ($1,000), then the foregoing provisions of this Section 9.3
shall not apply, and the Indemnified Party may investigate and defend and settle
such small claim in good faith on a commercially reasonable basis, taking into
account the claimant's relationship to the Company, without the assistance or
approval of the Indemnifying Party.

                  (d)      Upon notice to and consultation with Sellers
specifying in reasonable detail the basis for such set-off, Buyer may set off
any amount for which it may be entitled to indemnification under this Article 9
against amounts it owes, now or in the future, to Sellers, including without
limitation, payments of the Purchase Price pursuant to this Agreement; provided,
however, that any set-off against the Purchase Price will be made on a pro-rata
basis among the Sellers and also provided that Buyer agrees that such set-offs
will not be made until Buyer's claims for indemnity exceed Twenty Thousand
Dollars ($20,000) in the aggregate as of the Closing Date.

                                   ARTICLE 10
                           TERMINATION AND ABANDONMENT

         10.1     Termination by Mutual Consent. This Agreement may be
terminated at any time prior to the Closing by the mutual written consent of the
parties hereto.

<PAGE>

         10.2     Termination by Either the Buyer or Seller. This Agreement may
be terminated by either the Buyer or any Seller if the Closing is not
consummated by February 16, 2004 (provided that the right to terminate this
Agreement under this Section 10.2 will not be available to any party whose
failure to fulfill any obligation under this Agreement has been the cause of or
resulted in the failure of the Closing to occur on or before such date).

         10.3     Termination by Buyer.

                  (a)      This Agreement may be terminated at any time prior to
the Closing Date by Buyer if Sellers have failed to comply in any material
respect with any of the covenants, conditions or agreements contained in this
Agreement required to be performed or complied with by Sellers prior to the
Closing Date.

                  (b)      This Agreement may be terminated at any time prior to
the Closing Date by Buyer if any representation or warranty of Seller contained
in this Agreement is or becomes untrue or incorrect in any material respect
(except for changes permitted by this Agreement and previously identified in
this Agreement and those representations which address matters only as of a
particular date which remain true and correct as of such date). The effect of
any untrue or incorrect material misrepresentation or warranty by Sellers must
be of such a significant nature that it would not be prudent in the Buyer's
judgment for Buyer to operate the business, in order for Buyer to terminate this
Agreement in accordance with the provisions of 10.3 (b).

         10.4     Procedure and Effect of Termination. In the event of
termination of this Agreement and abandonment of the transactions contemplated
hereby by a party pursuant to this Article 10, written notice by certified mail,
thereof will be given to all other parties and this Agreement will terminate and
the transactions contemplated hereby will be abandoned, without further action
by any of the parties hereto. If this Agreement is terminated as provided herein
each of the parties will, upon request, redeliver all documents and other
material of the other parties relating to the transactions contemplated hereby,
whether obtained before or after the execution hereof, to the party furnishing
the same;

                                   ARTICLE 11
                                  MISCELLANEOUS

         11.1     Expenses. Buyer and Sellers shall bear their own costs and
expenses in connection with the transactions contemplated by this Agreement.

         11.2     Notices and Legal Process. All notices and other
communications and legal process shall be in writing and shall be personally
delivered, delivered by commercial delivery service, transmitted by facsimile,
or transmitted by registered or certified mail with return receipt requested, as
elected by the party giving such notice, addressed as follows:

<PAGE>

                  If to Buyer:

                           OptimumCare Corporation
                           30011 Ivy Glenn Drive
                           Suite 219
                           Laguna Niguel, CA  92677

                  If to Sellers:

                           Robert Babcock
                           P.O. Box 1771
                           Lake Havasu City, AZ 86405

                           and

                           Heidi Paterson
                           P.O. Box 2021
                           Lake Havasu City, AZ 86405

Notices shall be deemed to have been given upon delivery, or, if delivered
outside of business hours, then on the next business day. "Business hours" are
defined for this purpose to be Monday through Friday, 8:00 a.m. to 5:00 p.m.,
excluding holidays. Any party hereto may change its address for purposes hereof
by notice to the other parties hereto.

         11.3     Counterparts. This Agreement may be executed in any number of
counterparts, each of which shall be an original, and all of which together
shall constitute but one and the same instrument.

         11.4     Entire Agreement. Unless otherwise specifically agreed in
writing, this Agreement and the Schedules and Exhibits hereto represent the
entire understanding of the parties with reference to the transactions set forth
herein and supersede all prior representations, warranties, understandings and
agreements heretofore made by the parties, and neither this Agreement nor any
provisions hereof may be amended, waived, modified or discharged except by an
agreement in writing signed by the party against whom the enforcement of any
amendment, waiver, change or discharge is sought.

         11.5     Assignment. This Agreement shall be binding upon and inure to
the benefit of the parties hereto and their respective heirs, successors and
permitted assigns.

         11.6     Governing Law. This Agreement shall be governed by, and
construed and enforced in accordance with, the internal laws of the State of
Arizona.

         11.7     Arbitration. Any controversy or claim arising out of or
relating to this Agreement or the breach hereof, except as stated below, shall
be settled by arbitration in accordance with the rules of the American
Arbitration Association then in effect. The decision of the arbitrator shall,
except for mistakes of law, be final and binding upon the parties hereto, and
judgment upon the

<PAGE>

award rendered by the arbitrator, which shall, in the case of damages, be
limited to actual damages proven in the arbitration, may be entered in any court
having jurisdiction thereof.

         There shall be a single arbitrator who shall be an existing or former
judge of a court of record within the United States or an attorney in good
standing admitted to practice for a period of at least ten (10) years within the
United States. No arbitration shall involve parties other than the parties
hereto and their respective successors and assigns or be in any respect binding
with respect to any such other parties. The situs of the arbitration will be in
the County of Maricopa, State of Arizona.

         The parties to any arbitration arising hereunder shall have the right
to take depositions and to obtain discovery regarding the subject matter of the
arbitration and to use and exercise all of the same rights, remedies and
procedures, and be subject to all of the same duties, liabilities, and
obligations in the arbitration with respect to the subject matter thereof, as if
the subject matter of the arbitration were pending in a civil action before a
court of highest jurisdiction in the state where the arbitration is held. The
arbitrator shall have the power to enforce said discovery by imposition of same
terms, conditions, consequences, liabilities, sanctions and penalties as can be
or maybe imposed in like circumstances in a civil action by a court of highest
jurisdiction of the state in which the arbitration is held, except the power to
order the arrest or imprisonment of a person.

         If any party commences an action, either arbitration or court
proceedings, against any other party arising out of or in connection with this
Agreement, the prevailing party or parties shall be entitled from the losing
party or parties, both attorney's fees and costs of the arbitration and/or suit
as part of the judgment rendered.

         11.8     Attorneys' Fees. In any legal action brought to enforce the
provisions of this Agreement, including the breach thereof, the prevailing party
shall be entitled to recover all costs and expenses, including reasonable
attorneys' fees, incurred in enforcing or attempting to enforce any of the
terms, covenants or conditions, including costs incurred prior to commencement
of legal action, and all costs and expenses, including reasonable attorneys'
fees, incurred in any appeal from an action brought to enforce any of the terms,
covenants or conditions.

         11.9     Taxes. The Sellers shall be responsible for any and all
income, capital gains or other taxes arising from or relating to the sale of the
Shares and the receipt of consideration therefore by the Sellers pursuant to
this Agreement, except as noted in Section 7.2.

         11.10    Captions. The captions of the various Sections and subsections
hereof and on the Schedules hereto are for convenience of reference only, and
shall not affect the meaning or construction of any provision hereof or of any
such Schedules.

         11.11    Severability; Construction. In the event any provision hereof
is determined to be invalid or unenforceable, the remaining provisions hereof
shall be deemed severable therefrom and shall remain in full force and effect.
Words and phrases defined in the plural shall also be used in the singular and
vice versa and be construed in the plural or singular as appropriate and
apparent in the context used.

<PAGE>

         11.12    No Waiver. The respective representations and warranties of
the parties contained herein or in any documents delivered at the Closing shall
not be deemed waived or otherwise affected by any investigation made by any
party hereto.

<PAGE>

         IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first written above.

                                    "Sellers"

                                    ____________________________________________
                                    ROBERT M. BABCOCK, PHD

                                    ____________________________________________
                                    HEIDI PATERSON

                                    "Buyer"

                                    OPTIMUMCARE CORPORATION

                                    By:_________________________________________
                                          Edward A. Johnson, President

<PAGE>

                              SPOUSE'S CONCURRENCE

         The undersigned, D'Arcy A. Babcock, does hereby certify that the
undersigned:

         (i)      is the spouse of Dr. Robert M Babcock

         (ii)     has carefully read the foregoing Agreement and understands its
meaning and effect;

         (iii)    is aware that under the provisions of the foregoing Agreement
the undersigned's spouse has agreed to sell the Shares of the Company in which
the undersigned may have an interest;

         (iv)     fully and completely consents to and approves the purposes of
its provisions, and agrees to be bound by the terms thereof to the extent of any
interest that the undersigned may now or hereafter have in any Shares, without
determining at this time whether any such interest exists and the extent
thereof; and

         (v)      the spouse may join in any future amendments or modifications
of the foregoing Agreement without any further signature, acknowledgment,
agreement, concurrence or consent on the part of the undersigned.

                                        ________________________________________
                                        D'ARCY A. BABCOCK<PAGE>
                                                                     EXHIBIT 4.2

                               [FACE OF SECURITY]

         THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933,
AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAWS. NEITHER THIS
SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD,
ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE
ABSENCE OF SUCH REGISTRATION OR UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR NOT
SUBJECT TO, REGISTRATION.

         THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF AGREES NOT TO
OFFER, SELL OR OTHERWISE TRANSFER SUCH SECURITY, PRIOR TO THE DATE (THE "RESALE
RESTRICTION TERMINATION DATE") WHICH IS TWO YEARS AFTER THE LATER OF THE
ORIGINAL ISSUE DATE HEREOF AND THE LAST DATE ON WHICH THE COMPANY OR ANY
AFFILIATED PERSON OF THE COMPANY WAS THE OWNER OF THIS SECURITY (OR ANY
PREDECESSOR OF SUCH SECURITY) UNLESS SUCH OFFER, SALE OR OTHER TRANSFER IS (A)
TO THE COMPANY, (B) PURSUANT TO A REGISTRATION STATEMENT WHICH HAS BEEN DECLARED
EFFECTIVE UNDER THE SECURITIES ACT, (C) IF, AND FOR SO LONG AS, THE SECURITIES
ARE ELIGIBLE FOR RESALE PURSUANT TO RULE 144A, TO A PERSON THE HOLDER REASONABLY
BELIEVES IS A "QUALIFIED INSTITUTIONAL BUYER" AS DEFINED IN RULE 144A UNDER THE
SECURITIES ACT THAT PURCHASES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A
QUALIFIED INSTITUTIONAL BUYER TO WHOM NOTICE IS GIVEN THAT THE TRANSFER IS BEING
MADE IN RELIANCE ON RULE 144A, (D) PURSUANT TO OFFERS AND SALES TO NON-U.S.
PERSONS THAT OCCUR OUTSIDE THE UNITED STATES WITHIN THE MEANING OF REGULATION S
UNDER THE SECURITIES ACT, OR (E) PURSUANT TO ANOTHER AVAILABLE EXEMPTION FROM
THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT, SUBJECT TO THE COMPANY'S
AND THE TRUSTEE'S RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER PURSUANT TO
CLAUSES (C), (D) OR (E) TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL,
CERTIFICATION AND/OR OTHER INFORMATION SATISFACTORY TO EACH OF THEM, AND IN EACH
FOREGOING CASES, A CERTIFICATE OF TRANSFER IN THE FORM APPEARING ON THIS
SECURITY IS COMPLETED AND DELIVERED BY THE TRANSFEROR TO THE TRUSTEE. THIS
LEGEND WILL BE REMOVED UPON THE REQUEST OF THE THEN HOLDER OF THIS SECURITY
AFTER THE RESALE RESTRICTION TERMINATION DATE.

WORLD AIRWAYS, INC.

8.0% Convertible Senior Subordinated Debentures due 2009

<PAGE>

NO.______________                                            $_________________

         World Airways, Inc., a corporation duly organized and existing under
the laws of the State of Delaware (herein called the "Company," which term
includes any successor Person under the Indenture hereinafter referred to), for
value received, hereby promises to pay to ______________________(the "Holder"),
or registered assigns, the principal sum of ____________________Dollars and No
Cents ($__________) on December 30, 2009, and to pay interest thereon from the
date of original issuance of Securities pursuant to the Indenture or from and
including the most recent Interest Payment Date to which interest has been paid
or duly provided for, semi-annually on June 30th and December 30th in each year,
commencing on June 30, 2004, at the rate of 8.0% per annum, until the principal
hereof is paid or made available for payment. The interest so payable, and
punctually paid or duly provided for, on any Interest Payment Date will, as
provided in such Indenture, be paid to the Person in whose name this Security
(or one or more Predecessor Securities) is registered at the close of business
on the Regular Record Date for such interest, which shall be June 15th and
December 15th (whether or not a Business Day), as the case may be, next
preceding such Interest Payment Date. Any such interest not so punctually paid
or duly provided for will forthwith cease to be payable to the Holder on such
Regular Record Date and may either be paid to the Person in whose name this
Security (or one or more Predecessor Securities) is registered at the close of
business on a Special Record Date for the payment of such Defaulted Interest to
be fixed by the Trustee or be paid at any time in any other lawful manner not
inconsistent with the requirements of any securities exchange on which the
Securities may be listed and upon such notice as may be required by such
exchange, all as more fully provided in said Indenture. Notice of a Special
Record Date shall be given to Holders of Securities not less than 10 days prior
to such Special Record Date. Payment of the principal of, premium, if any, and
interest on the Securities shall be made in money of the United States that at
the time of payment is legal tender for payment of public and private debts.
Each installment of interest on the Securities shall be paid by wire transfer of
immediately available funds to the accounts specified by the Holders thereof
entitled to such interest or, if no such account is specified, by mailing a
check to each such Holder's registered address. The Holders must surrender the
Securities to a Paying Agent to collect principal and premium payments on the
Securities.

         Reference is hereby made to the further provisions of this Security set
forth on the reverse hereof, which further provisions shall for all purposes
have the same effect as if set forth at this place.

         Unless the certificate of authentication hereon has been executed by
the Trustee referred to on the reverse hereof by manual signature, this Security
shall not be entitled to any benefit under the Indenture or be valid or
obligatory for any purpose.

<PAGE>

         IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed under its corporate seal.

Dated: December 30, 2003                     WORLD AIRWAYS, INC.

                                             By:
                                                 ------------------------------
                                                 Name:
                                                       ------------------------
                                                 Title:
                                                        -----------------------

Attest:
       -----------------------

                          CERTIFICATE OF AUTHENTICATION

         This is one of the Securities referred to in the within-mentioned
Indenture.

                                             WACHOVIA BANK, NATIONAL ASSOCIATION

                                             By:
                                                 ------------------------------
                                                 Name:
                                                       ------------------------
                                                 Title:
                                                        -----------------------

<PAGE>

                              [REVERSE OF SECURITY]

         This Security is one of a duly authorized issue of Securities of the
Company designated as its 8.0% Convertible Senior Subordinated Debentures due
2009 (herein called the "Securities"), limited in aggregate principal amount to
$25,545,000, issued under an Indenture, dated as of December 30, 2003 (herein
called the "Indenture"), between the Company and Wachovia Bank, National
Association, as Trustee (herein called the "Trustee," which term includes any
successor trustee under the Indenture), to which Indenture and all indentures
supplemental thereto reference is hereby made for a statement of the respective
rights, limitations of rights, duties and immunities thereunder of the Company,
the Trustee, the holders of Senior Indebtedness and the Holders of the
Securities and of the terms upon which the Securities are, and are to be,
authenticated and delivered.

         Subject to and upon compliance with the provisions of the Indenture,
the Holder of this Security is entitled, at his option, at any time on or after
the date hereof and before the close of business on December 30, 2009, or in
case this Security or a portion hereof is called for redemption, then in respect
of this Security or such portion hereof until and including, but (unless the
Company defaults in making the payment due upon redemption) not after, the close
of business on the second Business Day preceding the Redemption Date, to convert
the principal amount of this Security (or any portion of the principal amount
hereof which is $1,000 or an integral multiple thereof), into fully paid and
non-assessable whole shares (calculated as to each conversion to the nearest
1/100th of a share) of Common Stock at a Conversion Price of $3.20 per share (or
at the current adjusted Conversion Price if an adjustment has been made as
provided in the Indenture). The Holder of this Security may exercise this
conversion option by surrender of this Security, duly endorsed or assigned to
the Company or in blank, to the Company at its office or agency maintained for
that purpose pursuant to Section 1002 of the Indenture, accompanied by written
notice to the Company in the form provided in this Security (or such other
notice as is acceptable to the Company) that the Holder hereof elects to convert
this Security, or if less than the entire principal amount hereof is to be
converted, the portion hereof to be converted. The number of shares of Common
Stock into which this Security or portion hereof surrendered for conversion is
convertible is determined by dividing the principal amount of this Security or
portion hereof surrendered for conversion by the Conversion Price in effect on
the date of conversion. Except in the case of a conversion after the Regular
Record Date next preceding any Interest Payment Date and prior to such Interest
Payment Date, a Holder of this Security (or any Predecessor Security) shall be
entitled to receive accrued interest on such Security to and including the date
of conversion in cash or, at the election of such Holder, shares of Common
Stock. If such Holder elects to receive Common Stock upon conversion as set
forth above, the shares of Common Stock will be valued at the VWAP of the Common
Stock for the five Trading Days immediately prior to the date that the Holder
has delivered to the Company its notice of election to convert as provided for
in Section 1302 of the Indenture. The shares of Common Stock to be delivered
upon conversion (if elected by such Holder) shall have been registered for
resale pursuant to the Registration Rights Agreements; provided, that, if such
shares are not so registered as of the date of conversion, the Company shall use
its best efforts to cause such shares to be registered for resale pursuant to
the Registration Rights Agreements or to otherwise be freely transferable in a
public resale as soon as possible after conversion. If such conversion occurs
after the Regular Record Date next preceding any Interest Payment Date and prior
to such Interest Payment Date, such Holder of the Security of record shall
receive an

<PAGE>

installment of interest payable in cash on such Interest Payment Date instead of
any payment of accrued interest on the date of conversion.

         No fractional shares or scrip representing fractions of shares will be
issued on optional conversion, but instead of any fractional share the Company
shall pay a cash adjustment as provided in the Indenture. The Conversion Price
is subject to adjustment as provided in the Indenture. In addition, the
Indenture provides that in case of certain consolidations or mergers to which
the Company is a party or the sale or transfer of all or substantially all of
the assets of the Company, the Indenture shall be amended, without the consent
of any Holders of Securities, so that this Security, if then outstanding, will
be convertible thereafter, during the period this Security shall be convertible
as specified above, only into the kind and amount of securities, cash and other
property receivable upon the consolidation, merger, sale or transfer by a holder
of the number of shares of Common Stock into which this Security might have been
converted immediately prior to such consolidation, merger, sale or transfer
(assuming such holder of Common Stock failed to exercise any rights of election
and received per share the kind and amount received per share by a plurality of
non-electing shares).

         The Securities are subject to redemption at the election of the
Company, at a Redemption Price equal to 100% of the principal amount thereof
being redeemed, in each case, plus accrued interest to the Redemption Date
(subject to the right of Holders of record on the relevant Regular Record Date
to receive interest due on an Interest Payment Date that is on or prior to the
Redemption Date) upon not less than 30 and not more than 60 days' notice by
mail, as a whole or in part: (i) on or after December 30, 2004, if the average
of the daily Closing Prices of the Common Stock for any 20 Trading Days out of
30 consecutive Trading Days ending on or before December 30, 2005, is at least
200.0% of the Conversion Price then in effect, (ii) on or after December 31,
2005, if the average of the daily Closing Prices of the Common Stock for any 20
Trading Days out of 30 consecutive Trading Days ending on or before December 30,
2006, is at least 150.0% of the Conversion Price then in effect, or (iii) at any
time by the Company on or after December 31, 2006.

         In certain circumstances involving the occurrence of a Repurchase Event
(as defined in the Indenture), the Holder hereof shall have the right to require
the Company to repurchase this Security at 100% of the principal amount hereof,
together with accrued interest to the Repurchase Date, but interest installments
whose Stated Maturity is on or prior to such Repurchase Date will be payable to
the Holders of such Securities, or one or more Predecessor Securities, of record
at the close of business on the relevant Record Dates referred to on the face
hereof, all as provided in the Indenture.

         In the event of redemption or conversion of this Security in part only,
a new Security or Securities for the unredeemed or unconverted portion hereof
will be issued in the name of the Holder hereof upon the cancellation hereof.

         The indebtedness evidenced by this Security is, in all respects,
subordinate and subject in right of payment to the prior payment in full of all
Senior Indebtedness, and this Security is issued subject to the provisions of
the Indenture with respect thereto. Each Holder of this Security, by accepting
the same, (a) agrees to and shall be bound by such provisions, (b) authorizes
and directs the Trustee on his behalf to take such action as may be necessary or

<PAGE>

appropriate to effectuate the subordination so provided, and (c) appoints the
Trustee his attorney-in-fact for any and all such purposes, in each case as
provided for in the Indenture.

         If an Event of Default shall occur and be continuing, the principal of
all the Securities may be declared due and payable in the manner and with the
effect provided in the Indenture.

         The Indenture permits, with certain exceptions as therein provided, the
amendment thereof and the modification of the rights and obligations of the
Company and the rights of the Holders of the Securities under the Indenture at
any time by the Company and the Trustee with the consent of the Holders of not
less than a majority in aggregate principal amount of the Securities at the time
Outstanding, together with the consent of a minimum of two Holders that are not
Affiliates of each other, and, under certain limited circumstances, by the
Company and the Trustee without the consent of the Holders. The Indenture also
contains provisions permitting the Holders of specified percentages in aggregate
principal amount of the Securities at the time Outstanding, on behalf of the
Holders of all the Securities, to waive compliance by the Company with certain
provisions of the Indenture and certain past defaults under the Indenture and
their consequences. Any such consent or waiver by the Holder of this Security
shall be conclusive and binding upon such Holder and upon all future Holders of
this Security and of any Security issued upon the registration of transfer
hereof or in exchange herefor or in lieu hereof, whether or not notation of such
consent or waiver is made upon this Security.

         No reference herein to the Indenture and no provision of this Security
or of the Indenture shall alter or impair the obligation of the Company, which
is absolute and unconditional, to pay the principal of and premium, if any, and
interest on this Security at the times, place and rate, and in the coin or
currency, herein prescribed or to convert this Security as provided in the
Indenture.

         As provided in the Indenture and subject to certain limitations therein
set forth, the transfer of this Security is registrable in the Security
Register, upon surrender of this Security for registration of transfer at the
office or agency of the Company in any place where the principal of and any
premium and interest on this Security are payable, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Company and the Security Registrar duly executed by, the Holder hereof or his
attorney duly authorized in writing, and thereupon one or more new Securities,
of authorized denominations and for the same aggregate principal amount, will be
issued to the designated transferee or transferees.

         The Securities are issuable only in fully registered form without
coupons in denominations of $1,000 and any integral multiple thereof. As
provided in the Indenture and subject to certain limitations therein set forth,
Securities are exchangeable for a like aggregate principal amount of Securities
of a different authorized denomination, as requested by the Holder surrendering
the same.

         No service charge shall be made for any such registration of transfer
or exchange except as provided in the Indenture, and the Company may require
payment of a sum sufficient to cover any tax or other governmental charge
payable in connection therewith.

         Prior to due presentment of this Security for registration of transfer,
the Company, the Trustee and any agent of the Company or the Trustee may treat
the Person in whose name this

<PAGE>

Security is registered on the Security Register as the owner hereof for all
purposes, except as provided in this Security, whether or not this Security be
overdue, and neither the Company, the Trustee nor any such agent shall be
affected by notice to the contrary.

         All terms used in this Security which are defined in the Indenture
shall have the meanings assigned to them in the Indenture. The Company will
furnish to any Holder upon written request and without charge a copy of the
Indenture.

<PAGE>

                 [FORM OF OPTIONAL CONVERSION NOTICE BY HOLDER]

TO WORLD AIRWAYS, INC.

         The undersigned registered owner of this Security hereby irrevocably
exercises the option to convert this Security, or the portion hereof (which is
$1,000 or a multiple thereof) designated below, into shares of Common Stock in
accordance with the terms of the Indenture referred to in this Security, and
directs that the shares issuable and deliverable upon the conversion, together
with (i) any check in payment for a fractional share and/or any interest accrued
hereon and (ii) any Security representing any unconverted principal amount
hereof and/or any interest accrued hereon, be issued and delivered to the
registered owner hereof unless a different name has been provided below. If
shares or any portion of this Security not converted are to be issued in the
name of a person other than the undersigned, the undersigned will pay all
transfer taxes payable with respect thereto. Any amount required to be paid by
the undersigned on account of interest accompanies this Security.

Dated:
       -------------------------           -----------------------------------
                                           Signature(s)

NOTICE:  Signature(s) must be guaranteed by
an institution which is a participant in the
Securities Transfer Agent Medallion Program
(STAMP) or similar program.

Signature Guarantee:
                     --------------------------------

Fill in for registration                                  Principal amount to be
of shares of Common Stock                                 converted
or Securities (if less than all Securities
are being converted) if they are to be                    $__________,000
issued other than to and in the name
of the registered owner:

-------------------------------------------
(Name)

-------------------------------------------
(Street Address)

-------------------------------------------
(City, State and zip code)

(Please print name and address)

<PAGE>

Register:  _______________  Common Stock
           _______________  Securities

(Check appropriate line(s)).

If undersigned is receiving accrued
interest upon conversion (if
conversion is not being elected after
the Regular Record Date next
preceding any Interest Payment Date),
select manner of receiving such
payment

_____ Cash
_____ Common Stock
(Check appropriate line).

<PAGE>

                                [ASSIGNMENT FORM]

If you the holder want to assign this Security, fill in the form below and have
your signature guaranteed:

I or we assign and transfer this Security to (Insert assignee's social security
or tax ID number)

(Print or type assignee's name, address and zip code) and irrevocably appoint
agent to transfer this Security on the books of the Company. The agent may
substitute another to act for him.

Date:                                       Your Signature:
      --------------------------                          ----------------------

        (Sign exactly as your name appears on the face of this Security)

Signature Guarantee:
                    --------------------------------

<PAGE>

                      [OPTION OF HOLDER TO ELECT PURCHASE]

         If you wish to have this Security purchased by the Company pursuant to
Section 1401 of the Indenture, check the Box: [  ]

         If you wish to have a portion of this Security (which is $1,000 or an
integral multiple thereof) purchased by the Company pursuant to Section 1401 of
the Indenture, state the amount you wish to have purchased:

                               $
                                ------------------------------

Date:                          Your Signature(s):
     ------------------                          -------------------------------

                               Tax Identification No.:
                                                      --------------------------

        (Sign exactly as your name appears on the face of this Security)

Signature Guarantee:
                    -----------------------------------

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00061-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00061-of-00352.parquet"}]]