<PAGE>
 
                                                                   EXHIBIT 10.14

                              EMPLOYMENT AGREEMENT

          Employment Agreement (the "Agreement") dated as of December 12, 1997,
by and between Synetic, Inc., a Delaware corporation (the "Company"), and Kim A.
Davis ("Executive").

                                R E C I T A L S
                                ---------------

          In consideration of the mutual covenants in this Agreement, the
parties agree as follows:

          1.   Effectiveness of Agreement and Employment
               -----------------------------------------

          1.1  Effectiveness of Agreement.  This Agreement shall become
               --------------------------                              
effective as of the date hereof.

          1.2  Employment by the Company.  The Company hereby employs Executive
               -------------------------                                       
as Senior Vice President of the Company as of the Employment Commencement Date
(as defined in Section 3 below) and Executive hereby accepts such employment
with the Company. Executive shall report to, and perform such duties and
services for the Company and its subsidiaries and affiliates (collectively,
"Affiliates") as may be designated from time to time by, the President and Chief
Executive Officer of the Company.  Executive shall use his best and most
diligent efforts to promote the interests of the Company and the Affiliates, and
shall devote all of his business time and attention to his employment under this
Agreement and under the Employment Agreement between the Executive and Porex
Corporation ("Porex") dated as of the date hereof (the "Porex Employment
Agreement").

          1.3  Restrictive Covenants.  Section 6 of the Porex Employment
               ---------------------                                    
Agreement is incorporated by reference in its entirety as if it were set forth
herein.

          2.   Compensation and Benefits.
               ------------------------- 

          2.1  Salary.  Company shall pay Executive for services during the
               ------                                                      

Employment Period a base salary at the annual rate of $100,000.  Such base
salary shall be reviewed no less frequently than annually and may be increased
in the sole discretion of the Board of Directors of the Company (the "Board") or
the Compensation Committee of the Board. Such base salary shall be payable in
equal installments, no less frequently than monthly, pursuant to the Company's
customary payroll policies in force at the time of payment, less any required or
authorized payroll deductions.

<PAGE>
 

                                       2

          2.2  Other Benefits.  Except as specified by Section 2.1 and Section
               --------------                                                 
5, the Executive shall not be entitled to receive any additional compensation or
benefits pursuant to this Agreement.

          3.   Employment Period.
               ----------------- 

          Executive's employment under this Agreement shall commence on January
1, 1998 (the "Employment Commencement Date"), and shall terminate on the fifth
anniversary thereof (the "Employment Period"), unless terminated earlier
pursuant to Section 4.  Unless written notice of either party's desire to
terminate the Employment Period has been given to the other party prior to the
expiration of the Employment Period (or any one-month renewal thereof
contemplated by this sentence), the Employment Period shall be automatically
renewed for successive one-month periods.

          4.   Termination.
               ----------- 

          4.1  Termination of the Porex Employment Agreement.  The Employment
               ---------------------------------------------                 
Period shall terminate immediately upon the termination of the Porex Employment
Agreement. The reason specified for the termination of the Porex Employment
Agreement shall apply equally to the termination of this Agreement and will have
the consequences set forth below.

          4.2  Termination by the Company for Cause.  Upon a termination of the
               ------------------------------------                            
Employment Period for Cause (as defined in the Porex Employment Agreement), the
Company shall have no obligation to the Executive other than the payment of
Executive's earned and unpaid salary to the effective date of such termination.

          4.3  Death and Disability.  In the event of the termination of the
               --------------------                                         
Employment Period as a result of the (i) the death of the Executive or (ii) the
Executive becoming ill, mentally or physically disabled, or otherwise
incapacitated so as to be unable to regularly perform the duties of his position
for a period in excess of 90 consecutive days or more than 120 days in any
consecutive twelve-month period, the Company shall have no obligation to the
Executive or the Executive's estate other than a continuation of his base salary
(at a rate equal to 100% of the rate in effect at the time of such termination)
for a period of two years following the date of termination, payable in
accordance with the third sentence of Section 2.1; provided, however, that such
salary continuation and payments shall end on the occurrence of any circumstance
or event that would constitute Cause, including, without limitation, a breach of
the covenants contained in Section 6 of the Porex Employment Agreement and
incorporated by reference herein.

<PAGE>
 
                                       3

          4.4  Resignation by the Executive.
               ----------------------------

          (a) If the Executive terminates his employment during the Employment
Period for any reason (except as set forth below in Section 4.4(b)), the Company
shall have no obligation to the Executive other than the payment of the
Executive's earned and unpaid salary to the effective date of such termination.

          (b) If the Executive terminates his employment with Porex in
accordance with Section 4.3(b) of the Porex Employment Agreement, the Executive
shall be entitled to receive amounts under Section 4.5 hereof as if the Company
had terminated the Executive's employment without Cause.

          4.5  Termination by the Company Without Cause.  If the Employment
               ----------------------------------------                    
Period is terminated by the Company without Cause, the Company shall have no
obligation to the Executive other than a continuation of his base salary (at a
rate equal to 100% of the rate in effect at the time of such termination) for a
period of two years following the date of termination, payable in accordance
with the third sentence of Section 2.1; provided, however, that such salary
continuation shall end on the occurrence of any circumstance or event that would
constitute Cause, including, without limitation, a breach of the covenants
contained in Section 6 of the Porex Employment Agreement and incorporated by
reference herein. The expiration of the Employment Period, pursuant to Section
3, shall not be considered a termination without Cause.

          4.6  Termination Following an IPO of Porex Corporation.  At the
               --------------------------------------------------        
election of the Company, the Employment Period shall terminate at any time
following the occurrence of an initial public offering of common equity
securities of Porex.  In the event of such a termination, the Company shall have
no obligation to the Executive other than the payment of the Executive's earned
and unpaid salary to the effective date of such termination.

          4.7  Liquidated Damages.  Executive acknowledges that any payments
               ------------------                                           
under Section 4.5 resulting from a termination of the Employment Period by the
Company without Cause are in lieu of any and all claims that the Executive may
have against the Company or any of its Affiliates other than under the Porex
Employment Agreement or benefits under the Company's employee benefit plans that
by their terms survive termination of employment (including, the Option
Agreements (as defined below)) and benefits under the Consolidated Omnibus
Budget Reconciliation Act of 1985, as amended, and represent liquidated damages
(and not a penalty).

          5.   Options.  Executive has been granted options ("Options") to
               -------                                                    
purchase shares of the Company's common stock, par value $.01 per share,
subject to the approval of the Company's stockholders of the amendment and
restatement of the Company's 1989 Class B Stock Option Plan (the "Amended and
Restated Class B Plan") pursuant to stock option agreements substantially in the
form attached hereto as Exhibits A and B (the "Option Agreements"). The terms
and conditions of such Options shall be governed by the Option Agreements and
the Amended and Restated Class B Plan.

<PAGE>
 
                                       4

          6.   Notices.  Any notice or communication given by either party
               -------                                                    
hereto to the other shall be in writing and personally delivered or mailed by
registered or certified mail, return receipt requested, postage prepaid, to the
following addresses:

          (a)  if to the Company:

               Synetic, Inc.
               669 River Drive
               Elmwood Park, New Jersey 07407-1361
               Telecopier No.: (212) 703-3401
               Attn: President and Chief Executive Officer

          (b) if to the Executive, to the address set forth on the signature
page hereof.


Any notice shall be deemed given when actually delivered to such address, or two
days after such notice has been mailed or sent by overnight courier, whichever
comes earliest.  Any person entitled to receive notice may designate in writing,
by notice to the other, such other address which notices to such person shall
thereafter be sent.

          7.   Miscellaneous.
               ------------- 

          7.1  Entire Agreement.  This Agreement together with the Porex
               ----------------                                         
Employment Agreement and the Option Agreements contain the entire understanding
of the parties in respect of its subject matter and supersede upon its
effectiveness all other prior agreements and understandings between the parties
with respect to such subject matter.

          7.2  Amendment; Waiver.  This Agreement may not be amended,
               -----------------                                     
supplemented, canceled or discharged, except by written instrument executed by
the party affected thereby.  No failure to exercise, and no delay in exercising,
any right, power or privilege hereunder shall operate as a waiver thereof.  No
waiver of any breach of any provision of this Agreement shall be deemed to be a
waiver of any preceding or succeeding breach of the same or any other provision.

          7.3  Binding Effect; Assignment.  The rights and obligations of this
               --------------------------                                     
Agreement shall bind and inure to the benefit of any successor of the Company by
reorganization, merger or consolidation, or any assignee of all or substantially
all of the Company's business and properties. Executive's rights or obligations
under this Agreement may not be assigned by the Executive, except that the right
specified in Section 4.3 shall pass upon the Executive's death to Executive's
executor or administrator.

<PAGE>
 
                                       5

          7.4  Headings.  The headings contained in this Agreement are for
               --------                                                   
reference purposes only and shall not affect the meaning or interpretation of
this Agreement.

          7.5  Governing Law; Interpretation.  This Agreement shall be construed
               -----------------------------                                    
in accordance with and governed for all purposes by the laws and public policy
(other than conflict of laws principles) of the State of New Jersey, applicable
to contracts executed and to be wholly performed within such State.

          7.6  Further Assurances.  Each of the parties agrees to execute,
               ------------------                                         
acknowledge, deliver and perform, and cause to be executed, acknowledged,
delivered and performed, at any time and from time to time, as the case may be,
all such further acts, deeds, assignments, transfers, conveyances, powers of
attorney and assurances as may be reasonably necessary to carry out the
provisions or intent of this Agreement.

          7.7  Severability.  The parties have carefully reviewed the provisions
               ------------                                                     
of this Agreement and agree that they are fair and equitable.  However, in light
of the possibility of differing interpretations of law and changes in
circumstances, the parties agree that if any one or more of the provisions of
this Agreement shall be determined by a court of competent jurisdiction to be
invalid, void or unenforceable, the remainder of the provisions of this
Agreement shall, to the extent permitted by law, remain in full force and effect
and shall in no way be affected, impaired or invalidated.  Moreover, if any of
the provisions contained in this Agreement is determined by a court of competent
jurisdiction to be excessively broad as to duration, activity, geographic
application or subject, it shall be construed, by limiting or reducing it to the
extent legally permitted, so as to be enforceable to the extent compatible with
then applicable law.

          7.8  Withholding Taxes.  All payments hereunder shall be subject to
               -----------------                                             
any and all applicable federal, state, local and foreign withholding taxes.
<PAGE>
 
                                       6

          IN WITNESS WHEREOF, the parties hereto have executed this Agreement as
of the day and year first above written.


                                    SYNETIC, INC.


                                    By: /s/ Charles A. Mele
                                       -----------------------------
                                        Name:       Charles A. Mele
                                        Title:      Vice President
 

                                    EXECUTIVE

                                        /s/ Kim A. Davis
                                       ------------------------------


                                    Address:

 
<PAGE>
 
                                                                       EXHIBIT A
<PAGE>
 
                             STOCK OPTION AGREEMENT

          STOCK OPTION AGREEMENT (this "Agreement") made as of November 18,
1997, between SYNETIC, INC., a Delaware corporation (the "Company"), and KIM A.
DAVIS ("Optionee").

                                    RECITAL
                                    -------

          WHEREAS, pursuant to the Company's Amended and Restated 1989 Class B
Stock Option Plan (the "Amended Class B Plan"; capitalized terms used herein
without definition have the meanings specified in the Amended Class B Plan) and
upon the terms and subject to the conditions hereinafter set forth, the Company
desires to provide Optionee with an incentive to become an Employee of the
Company and of Porex Corporation, a Subsidiary of the Company ("Porex"), to
remain in the employ thereof, and to increase his interest in the success of,
the Company, Porex and their respective Affiliates by granting to Optionee a
nonqualified stock option (the "Option") to purchase shares of common stock,
$.01 par value, of the Company (the "Common Stock");

          WHEREAS, the grant of the Option is subject to the approval of the
Amended Class B Plan by the Company's stockholders; and

          WHEREAS, the Option is intended to comply with the requirements of
Rule 16b-3 under the Securities Exchange Act of 1934, as amended (the "Exchange
Act") and Section 162(m) of the Internal Revenue Code of 1986, as amended.

                                   AGREEMENTS
                                   ----------

          In consideration of the Recitals (which are incorporated by reference)
and the mutual covenants of this Agreement, the Company and Optionee agree as
follows:

          1.   Grant of Option.  Pursuant to a determination by the Stock Option
               ---------------                                                  
Committee of the Board of Directors of the Company (the "Board"), effective as
of the date first set forth above (the "Date of Grant"), the Company hereby
grants to Optionee, subject to the terms of this Agreement and the approval of
the Amended Class B Plan by the Company's stockholders, the right (the "Option")
to purchase 125,000 shares (the "Shares") of Common Stock under the Amended
Class B Plan.  In the event that such approval is not obtained, the Option shall
be null and void and of no further force and effect.
<PAGE>

                                       2

          2.     Exercisability of Option.
                 ------------------------ 

          2.1. Subject to the terms and conditions of this Agreement (including,
without limitation, Sections Section 2.2, 2.3, 2.4 and 2.5), the Option to
purchase the Shares shall become exercisable in accordance with the following
schedule:

                                               % of Option
                                               Exercisable (on a
                 Vesting Date                  Cumulative Basis)
                 ------------                  ----------------- 

                January 1, 1999                              20%
                     
                January 1, 2000                              40%
                     
                January 1, 2001                              60%
                     
                January 1, 2002                              80%
                     
                January 1, 2003                             100%


          2.2. The unexercised portion of the Option shall automatically and
without notice terminate and become null and void at the time of the earliest to
occur of the following:

               2.2.1.  The tenth anniversary of the Date of Grant; or

               2.2.2.  Subject to the provisions of Sections 2.3, 2.4, 2.5 and
     2.6 below, 30 days (90 days in the case of death of Optionee or his
     retirement with the consent of the Company) following the date of
     termination of Optionee's status as an employee of the Company and its
     Subsidiaries for any reason in the case of the vested portion of the Option
     (or the date on which a portion of the Option vests pursuant to Section
     2.4) and immediately following such date of termination in the case of the
     unvested portion of the Option; provided that if, prior to the expiration
     of such 30-day period, Optionee is retained as a consultant by the Company
     or any Subsidiary, Optionee shall be deemed to continue to be an employee
     of the Company or such Subsidiary for purposes of this Section 2.2 and
     Section 2.3, 2.4, 2.5 and 2.6 until 30 days following the date Optionee
     shall cease to be so retained, unless the Board or the Committee shall
     determine, in its sole discretion, that retention of Optionee as a
     consultant shall not be deemed to result in continuation as an employee for
     purposes of this Section 2.2 and Section 2.3, 2.4, 2.5 and 2.6 with respect
     to either (a) all Shares covered by the Option or (b) the Shares for which
     the Option has not yet become exercisable, pursuant to Section 2.1, as of
     the date of termination of employment.  Any such continuation shall not be
     deemed the grant of a new Option.  Without limiting the generality of the
     foregoing, termination of Optionee's employment with the Company shall not
     terminate the Option provided that the Optionee remains an employee of a
     Subsidiary.
<PAGE>
 
                                       3

          2.3. If Optionee's employment is terminated by the Company and its
Subsidiaries for Cause (as defined in the Employment Agreement dated as of
December 12, 1997 by and between Porex and Optionee (the "Porex Employment
Agreement")), the Option (both vested and non-vested) shall expire on the date
of termination.

          2.4. In the event that Optionee's employment with the Company is
terminated (I) by the Company and its Subsidiaries without Cause or as a result
of his disability (as provided in Section 4.2 of the Porex Employment
Agreement), (II) by Optionee due to a material reduction in his duties or
responsibilities under the Porex Employment Agreement which has not been in
cured by Porex within 20 days following written notice by the Executive
detailing such reduction or (III) by Optionee upon 30 days' written notice to
the Company at any time after a 12-month period (or such shorter period to the
extent the acquiring company does not request the services of Optionee for such
12-month period) following the occurrence of the Change in Control of Porex (as
defined in the Porex Employment Agreement), any Option that has not vested as of
the date of termination shall remain outstanding and continue to vest, and shall
otherwise be treated for purposes of this Agreement, as if Optionee remained in
the employ of the Company through the earlier of (a) the second anniversary of
the date of termination or (b) the occurrence of any circumstance or event that
would constitute Cause.

          2.5. Notwithstanding any other provision of this Agreement, the
Committee may determine that the Option shall become exercisable in full or in
part, whether or not it is then exercisable, upon such circumstances or events
as the Committee determines, in its sole discretion, merits special
consideration.

          2.6  Notwithstanding anything to the contrary contained herein, in no
event shall the Option be exercisable after the expiration of ten years from the
date of this Agreement.

          3.   Method of Exercise of Option.  Subject to Section 5 below, the
               ----------------------------                                  
Option may be exercised by Optionee (or by Optionee's personal representatives
or heirs at law but by no other person) as to all or (at Optionee's election)
part of the Shares as to which the Option is then exercisable (that is, vested)
under Section 2 by giving written notice of exercise to the Company at its
principal business office, specifying the number of Shares for which the Option
is exercised, accompanied by payment in full for such Shares (as determined
pursuant to Section 4) together with any amount required for payroll withholding
tax under all applicable federal, state or local laws or regulations.  The
failure to exercise the Option, in whole or in part, as to any vested exercise
rights shall not constitute a waiver of these rights.  The Company shall cause
certificates for the Shares so purchased to be delivered to Optionee or
Optionee's personal representatives or heirs at law, at its principal business
office, against payment in full of the Option Price for such Shares (as defined
below in Section 4), as soon as practicable following receipt of the notice of
exercise and the applicable purchase price. The Option Price shall be paid in
United States dollars in the form of cash, certified check or bank draft, or (if
the Shares of Common Stock of the Company are then publicly traded) in fully
paid Shares of Common Stock of the Company held for a period of at least six
months (valued for this purpose at their then fair market value determined by
the Committee), consistent with practices permitted by the Committee or a
combination of the two.

<PAGE>
 
                                       4

          4.   Option Price.  The purchase price of the Shares covered by this
               ------------                                                   
Agreement shall be $36.50 per Share.

          5.   Non-Transferability of Option.  The Option is not assignable or
               -----------------------------                                  
transferable except by will or by the laws of descent and distribution and the
Option may not be exercised other than by Optionee or, after the death of
Optionee, by Optionee's personal representative, heirs or legatees; provided,
however, that the Committee may, subject to such terms and conditions as the
Committee shall specify, permit the transfer of the Option to Optionee's family
members or to one or more trusts established in whole or in part for the benefit
of one or more of such family members.  Without limiting the generality of the
foregoing, the Option may not be assigned, transferred (except as permitted in
the preceding sentence), pledged or hypothecated in any way (whether by
operation of law or otherwise), and shall not be subject to levy, attachment or
similar process.  Any attempt to assign, transfer, pledge or hypothecate the
Option contrary to the provisions of this Agreement, and any levy, attachment or
similar process upon the Option shall be null and void and without effect, and
the Board or the Committee may, in its discretion, upon the happening of any
such event, terminate the Option as of the date of such event.

          6.   No Rights Prior to Issuance of Shares.  Optionee shall have no
               -------------------------------------                         
rights as a stockholder with respect to the Shares covered by the Option until
the date the Company has issued and delivered such Shares to Optionee, and
Optionee's name shall have been entered as the stockholder of record on the
books of the Company and then only as to such Shares as are actually issued and
delivered to Optionee.

          7.   Restrictions on Exercise and on Common Stock.
               -------------------------------------------- 

          7.1. The Shares issued upon exercise of the Option shall be issued
only to Optionee or a person permitted to exercise the Option pursuant to
Section 3.

          7.2  The Option shall not be exercisable unless and until (i) a
registration statement under the Securities Act has been duly filed and declared
effective pertaining to the Shares and such Shares shall have been qualified
under applicable state "blue sky" laws, or (ii) the Committee in its sole
discretion determines that such registration and qualification is not required
as a result of the availability of an exemption from such registration and
qualification under such laws. The Company shall use all reasonable efforts to
file a registration statement with the Securities and Exchange Commission on
Form S-8 with respect to the Shares subject to the Option on or prior to the
date on which such Option becomes exercisable. The Company shall have no
obligation to issue any Common Stock pursuant to the exercise of the Option if
the Company reasonably determines at the time of such exercise that the issuance
of Common Stock at such time would violate applicable law with respect to
insider trading or otherwise, or then existing policies of the Company
applicable to employees of the Company or its Affiliates holding options to
purchase Common Stock.

<PAGE>
 
                                       5

          7.3. The Company may require Optionee to represent to the Company, in
writing, when the Option is exercised, that the Optionee is exercising the
Option for Optionee's own account for investment only and not with a view to
distribution and that Optionee will not make any sale, transfer or other
disposition of any Shares purchased except (i) pursuant to a registration
statement filed under the Securities Act of 1933, as amended (the "Securities
Act"), which the Securities and Exchange Commission has declared effective, (ii)
pursuant to an opinion of counsel satisfactory in form and substance to the
Company that the sale, transfer or other disposition may be made without
registration, or (iii) pursuant to a "no action" letter issued to Optionee by
the Securities and Exchange Commission.  The Company may require each share
certificate representing Shares to bear a legend stating that the Shares
evidenced thereby may not be sold or transferred except in compliance with the
Securities Act and the provisions of the Amended Class B Plan and this
Agreement.  Notwithstanding anything contained herein to the contrary, the
Option shall not be exercisable at a time when the exercise thereof may result
in the violation of any law or governmental order or regulation.

          8.   Right to Terminate Employment.  This Agreement does not
               -----------------------------                          
constitute a contract of, or an implied promise to continue, Optionee's
employment or status with the Company or any Subsidiary of the Company; and
nothing contained in this Agreement shall confer upon Optionee the right to
continue such employment or status; nor does this Agreement affect the right of
the Company or any such Subsidiary to terminate Optionee's employment at any
time.  Optionee shall have no rights in the benefits conferred by the Option or
in any Shares except to the extent the Option is exercised while vested and
prior to termination.  Termination of the Option by reason of rightful
termination of employment shall give no rise for any claim for damages by
Optionee under this Agreement and shall be without prejudice to any rights or
remedies which the Company or any Subsidiary of the Company may have against
Optionee.

          9.   Taxes.  If the Company shall be required to withhold any amounts
               -----                                                           
by reason of any federal, state or local tax rules or regulations in respect of
the payment of cash or the issuance of Shares pursuant to the exercise of an
Option, the Company shall be entitled to deduct and withhold such amounts from
any cash payments to be made to Optionee. In any event, Optionee shall either
(i) make available to the Company, promptly when requested by the Company,
sufficient funds to meet the requirements of such withholding, or (ii) to the
extent permitted by the Committee, irrevocably authorize the Company to withhold
from the Shares otherwise issuable to Optionee as a result of such exercise a
number of Shares having a fair market value, as of the date the withholding tax
obligation arises (the "Tax Date") which alone, or when added to funds paid to
the Company by Optionee, equal the amount of the minimum withholding tax
obligation (the "Withholding Elections") and the Company shall be entitled to
take and authorize such steps as it may deem advisable in order to have such
funds made available to the Company out of any funds or property due or to
become due to Optionee. Optionee's Withholding Election may only be made prior
to the Tax Date and may be disapproved by the Committee. The Committee may
establish such rules and procedures as it may deem necessary or advisable in
connection with the withholding of taxes relating to the exercise of the Option.

<PAGE>
 
                                       6

          10.  Notices.  Each notice relating to this Agreement shall be in
               -------                                                     
writing and delivered in person or by certified mail to the proper address.
Each notice to the Company shall be addressed to it at its principal office,
attention of the Chief Financial Officer, with a copy to the Company's
Secretary.  Each notice to Optionee (or other person or persons then entitled to
exercise the Option) shall be addressed to Optionee (or such other person or
persons) at Optionee's most recent address on the books of the Company.  Anyone
to whom a notice may be given under this Agreement may designate a new address
by notice to that effect.  Each notice shall be deemed to have been given on the
day it is received.

          11.  Benefits of Agreement.  This Agreement shall inure to the benefit
               ---------------------                                            
of and be binding upon each successor of the Company.  Subject to Section 5,
rights granted to the Company under this Agreement shall be binding upon
Optionee's personal representatives and heirs at law.

          12.  Set-off.  If at any time Optionee is indebted to the Company,
               -------                                                      
Porex or any of their respective Affiliates for any reason, the Company may in
the discretion of the Board or the Committee (a) withhold from Optionee (i)
following the exercise by Optionee of an Option, Shares issuable to Optionee
having a Fair Market Value on the date of exercise up to the amount of
indebtedness to the Company or (ii) following the sale by Optionee of Shares
received pursuant to the exercise of the Option, amounts due to Optionee in
connection with the sale of such Shares up to the amount of indebtedness to the
Company, or (b) take any substantially similar action.  The Board or the
Committee may establish such rules and procedures as it may deem necessary or
advisable in connection with the taking of any action contemplated by this
Section 12.

          13.  Captions.  The captions contained in this Agreement are for
               --------                                                   
reference purposes only and shall not affect the meaning or interpretation of
this Agreement.
<PAGE>
 
                                       7

          14.  Interpretation and Construction.  The Option shall be
               -------------------------------                      
administered by the Committee.  The Committee shall have authority to interpret
and construe the terms of the Option, to make all determinations necessary or
advisable for the administration of the Option (including determinations
relating to the delivery of Shares of Common Stock in payment of the purchase
price of the Shares covered by the Option and any tax withholding obligations,
subject to compliance with any applicable rules promulgated under Section 16 of
the Exchange Act).  The good faith interpretation and construction by the Board
or by the Committee of any provision of this Agreement shall be final and
conclusive and binding on the parties hereto.

          15.  Governing Law.  This Agreement shall be construed in accordance
               -------------                                                  
with and governed by the laws of the State of New Jersey without regard to any
principles of conflict of laws.

          16.      Amended Class B Plan.  This Agreement, the Option and the
                   --------------------                                     
Common Stock issued pursuant to the exercise of the Option shall be subject to
the Amended Class B Plan, the terms of which are incorporated by reference
herein.  In the event of any inconsistency between this Agreement and the Plan,
the Plan shall govern.

                                   EXECUTION
                                   ---------

          The parties signed this Agreement as of the day and year first above
written, whereupon it became binding in accordance with its terms.


                                      SYNETIC, INC.
                              
                              
                                      By:  /s/ Anthony Vuolo
                                          ------------------
                                          Name:  Anthony Vuolo
                                          Title: Vice President and Chief
                                                   Financial Officer
                              
                              
                                           /s/ Kim A. Davis
                                          ------------------
                                               Kim A. Davis
<PAGE>
 
                                                                       EXHIBIT B
<PAGE>
 
                             STOCK OPTION AGREEMENT

          STOCK OPTION AGREEMENT (this "Agreement") made as of November 18,
1997, between SYNETIC, INC., a Delaware corporation (the "Company"), and KIM A.
DAVIS ("Optionee").

                                    RECITAL
                                    -------

          WHEREAS, pursuant to the Company's Amended and Restated 1989 Class B
Stock Option Plan (the "Amended Class B Plan"; capitalized terms used herein
without definition have the meanings specified in the Amended Class B Plan) and
upon the terms and subject to the conditions hereinafter set forth, the Company
desires to provide Optionee with an incentive to become an Employee of the
Company and of Porex Corporation, a Subsidiary of the Company ("Porex"), to
remain in the employ thereof, and to increase his interest in the success of,
the Company, Porex and their respective Affiliates by granting to Optionee a
nonqualified stock option (the "Option") to purchase shares of common stock,
$.01 par value, of the Company (the "Common Stock");

          WHEREAS, the grant of the Option is subject to the approval of the
Amended Class B Plan by the Company's stockholders; and

          WHEREAS, the Option is intended to comply with the requirements of
Rule 16b-3 under the Securities Exchange Act of 1934, as amended (the "Exchange
Act") and Section 162(m) of the Internal Revenue Code of 1986, as amended.

                                   AGREEMENTS
                                   ----------

          In consideration of the Recitals (which are incorporated by reference)
and the mutual covenants of this Agreement, the Company and Optionee agree as
follows:

          1.   Grant of Option.  Pursuant to a determination by the Stock Option
               ---------------                                                  
Committee of the Board of Directors of the Company (the "Board"), effective as
of the date first set forth above (the "Date of Grant"), the Company hereby
grants to Optionee, subject to the terms of this Agreement and the approval of
the Amended Class B Plan by the Company's stockholders, the right (the "Option")
to purchase 125,000 shares (the "Shares") of Common Stock under the Amended
Class B Plan.  In the event that such approval is not obtained, the Option shall
be null and void and of no further force and effect.
<PAGE>
 
                                       2

          2.     Exercisability of Option.
                 ------------------------ 

          2.1. Subject to the terms and conditions of this Agreement (including,
without limitation, Sections 2.2, 2.3, 2.4 and 2.5), the Option to purchase the
Shares shall become exercisable on November 1, 2007; provided, however, that in
the event that (i) an initial public offering under the Securities Act of 1933,
as amended (the "Securities Act") of the common stock of Porex shall not have
occurred on or prior to the dates specified in the table below and (ii) the
Executive has not been granted the options to purchase common stock of Porex as
contemplated in Section 5 of the Employment Agreement dated as of December 12,
1997 by and between Porex and Optionee (the "Porex Employment Agreement"), the
specified portion of the Option set forth opposite such date shall become
exercisable:

                                               % of Option
                                               Exercisable (on a
                 Vesting Date                  Cumulative Basis)
                 ------------                  ----------------- 

                January 1, 1999                             20%
                                                              
                January 1, 2000                             40%
                                                              
                January 1, 2001                             60%
                                                              
                January 1, 2002                             80%
                                                              
                January 1, 2003                            100%


          2.2.  The unexercised portion of the Option shall automatically and
without notice terminate and become null and void at the time of the earliest to
occur of the following: 
 
               2.2.1.  The tenth anniversary of the Date of Grant; or

               2.2.2.  Subject to the provisions of Sections 2.3, 2.4, 2.5 and
     2.6 below, 30 days (90 days in the case of death of Optionee or his
     retirement with the consent of the Company) following the date of
     termination of the Employment Agreement dated as of December 12, 1997 by
     and between the Company and the Optionee (notwithstanding that the Optionee
     may remain an employee of Synetic or Porex) for any reason in the case of
     the vested portion of the Option (or the date on which a portion of the
     Option vests pursuant to Section 2.4) and immediately following such date
     of termination in the case of the unvested portion of the Option; provided
     that if, prior to the expiration of such 30-day period, Optionee is
     retained as a consultant by the Company, Optionee shall be deemed to
     continue to be an employee of the Company for purposes of this Section 2.2
     and Section 2.3, 2.4, 2.5 and 2.6 until 30 days following the date Optionee
     shall cease to be so retained, unless the Board or the Committee shall
     determine, in its sole discretion, that retention of Optionee as a
     consultant shall not be deemed to result in continuation as an employee for
     purposes of this Section 2.2 and Section 2.3, 2.4, 2.5 and 2.6 with respect
     to either (a) all Shares covered by the Option or (b) the Shares for which
     the Option has not yet become exercisable, pursuant to Section 2.1, as of
     the date of termination of employment. Any such continuation shall not be
     deemed the grant of a new Option.

<PAGE>
 
                                       3

          2.3. If Optionee's employment is terminated by the Company and its
Subsidiaries for Cause (as defined in the Porex Employment Agreement, the Option
(both vested and non-vested) shall expire on the date of termination.

          2.4. In the event that Optionee's employment with the Company is
terminated (I) by the Company and its Subsidiaries without Cause or as a result
of his disability (as provided in Section 4.2 of the Porex Employment
Agreement), (II) by Optionee due to a material reduction in his duties or
responsibilities under the Porex Employment Agreement which has not been in
cured by Porex within 20 days following written notice by the Executive
detailing such reduction or (III) by Optionee upon 30 days' written notice to
the Company at any time after a 12-month period (or such shorter period to the
extent the acquiring company does not request the services of Optionee for such
12-month period) following the occurrence of the Change in Control of Porex (as
defined in the Porex Employment Agreement), any Option that has not vested as of
the date of termination shall remain outstanding and continue to vest, and shall
otherwise be treated for purposes of this Agreement, as if Optionee remained in
the employ of the Company through the earlier of (a) the second anniversary of
the date of termination or (b) the occurrence of any circumstance or event that
would constitute Cause.

          2.5. Notwithstanding any other provision of this Agreement, the
Committee may determine that the Option shall become exercisable in full or in
part, whether or not it is then exercisable, upon such circumstances or events
as the Committee determines, in its sole discretion, merits special
consideration.

          2.6  Notwithstanding anything to the contrary contained herein, in no
event shall the Option be exercisable after the expiration of ten years from the
date of this Agreement.

          3.   Method of Exercise of Option.  Subject to Section 5 below, the
               ----------------------------                                  
Option may be exercised by Optionee (or by Optionee's personal representatives
or heirs at law but by no other person) as to all or (at Optionee's election)
part of the Shares as to which the Option is then exercisable (that is, vested)
under Section 2 by giving written notice of exercise to the Company at its
principal business office, specifying the number of Shares for which the Option
is exercised, accompanied by payment in full for such Shares (as determined
pursuant to Section 4) together with any amount required for payroll withholding
tax under all applicable federal, state or local laws or regulations.  The
failure to exercise the Option, in whole or in part, as to any vested exercise
rights shall not constitute a waiver of these rights. The Company shall cause
certificates for the Shares so purchased to be delivered to Optionee or
Optionee's personal representatives or heirs at law, at its principal business
office, against payment in full of the Option Price for such Shares (as defined
below in Section 4), as soon as practicable following receipt of the notice of
exercise and the applicable purchase price. The Option Price shall be paid in
United States dollars in the form of cash, certified check or bank draft, or (if
the Shares of Common Stock of the Company are then publicly traded) in fully
paid Shares of Common Stock of the Company held for a period of at least six
months (valued for this purpose at their then fair market value determined by
the Committee), consistent with practices permitted by the Committee or a
combination of the two.

<PAGE>
 
                                       4

          4.   Option Price.  The purchase price of the Shares covered by this
               ------------                                                   
Agreement shall be $36.50 per Share.

          5.   Non-Transferability of Option.  The Option is not assignable or
               -----------------------------                                  
transferable except by will or by the laws of descent and distribution and the
Option may not be exercised other than by Optionee or, after the death of
Optionee, by Optionee's personal representative, heirs or legatees; provided,
however, that the Committee may, subject to such terms and conditions as the
Committee shall specify, permit the transfer of the Option to Optionee's family
members or to one or more trusts established in whole or in part for the benefit
of one or more of such family members.  Without limiting the generality of the
foregoing, the Option may not be assigned, transferred (except as permitted in
the preceding sentence), pledged or hypothecated in any way (whether by
operation of law or otherwise), and shall not be subject to levy, attachment or
similar process.  Any attempt to assign, transfer, pledge or hypothecate the
Option contrary to the provisions of this Agreement, and any levy, attachment or
similar process upon the Option shall be null and void and without effect, and
the Board or the Committee may, in its discretion, upon the happening of any
such event, terminate the Option as of the date of such event.

          6.   No Rights Prior to Issuance of Shares.  Optionee shall have no
               -------------------------------------                         
rights as a stockholder with respect to the Shares covered by the Option until
the date the Company has issued and delivered such Shares to Optionee, and
Optionee's name shall have been entered as the stockholder of record on the
books of the Company and then only as to such Shares as are actually issued and
delivered to Optionee.

          7.   Restrictions on Exercise and on Common Stock.
               -------------------------------------------- 

          7.1. The Shares issued upon exercise of the Option shall be issued
only to Optionee or a person permitted to exercise the Option pursuant to
Section 3.

          7.2  The Option shall not be exercisable unless and until (i) a
registration statement under the Securities Act has been duly filed and declared
effective pertaining to the Shares and such Shares shall have been qualified
under applicable state "blue sky" laws, or (ii) the Committee in its sole
discretion determines that such registration and qualification is not required
as a result of the availability of an exemption from such registration and
qualification under such laws. The Company shall use all reasonable efforts to
file a registration statement with the Securities and Exchange Commission on
Form S-8 with respect to the Shares subject to the Option on or prior to the
date on which such Option becomes exercisable. The Company shall have no
obligation to issue any Common Stock pursuant to the exercise of the Option if
the Company reasonably determines at the time of such exercise that the issuance
of Common Stock at such time would violate applicable law with respect to
insider trading or otherwise, or then existing policies of the Company
applicable to employees of the Company or its Affiliates holding options to
purchase Common Stock.

<PAGE>
 
                                       5

          7.3. The Company may require Optionee to represent to the Company, in
writing, when the Option is exercised, that the Optionee is exercising the
Option for Optionee's own account for investment only and not with a view to
distribution and that Optionee will not make any sale, transfer or other
disposition of any Shares purchased except (i) pursuant to a registration
statement filed under the Securities Act, which the Securities and Exchange
Commission has declared effective, (ii) pursuant to an opinion of counsel
satisfactory in form and substance to the Company that the sale, transfer or
other disposition may be made without registration, or (iii) pursuant to a "no
action" letter issued to Optionee by the Securities and Exchange Commission.
The Company may require each share certificate representing Shares to bear a
legend stating that the Shares evidenced thereby may not be sold or transferred
except in compliance with the Securities Act and the provisions of the Amended
Class B Plan and this Agreement.  Notwithstanding anything contained herein to
the contrary, the Option shall not be exercisable at a time when the exercise
thereof may result in the violation of any law or governmental order or
regulation.

          8.   Right to Terminate Employment.  This Agreement does not
               -----------------------------                          
constitute a contract of, or an implied promise to continue, Optionee's
employment or status with the Company or any Subsidiary of the Company; and
nothing contained in this Agreement shall confer upon Optionee the right to
continue such employment or status; nor does this Agreement affect the right of
the Company or any such Subsidiary to terminate Optionee's employment at any
time.  Optionee shall have no rights in the benefits conferred by the Option or
in any Shares except to the extent the Option is exercised while vested and
prior to termination.  Termination of the Option by reason of rightful
termination of employment shall give no rise for any claim for damages by
Optionee under this Agreement and shall be without prejudice to any rights or
remedies which the Company or any Subsidiary of the Company may have against
Optionee.

          9.   Taxes.  If the Company shall be required to withhold any amounts
               -----                                                           
by reason of any federal, state or local tax rules or regulations in respect of
the payment of cash or the issuance of Shares pursuant to the exercise of an
Option, the Company shall be entitled to deduct and withhold such amounts from
any cash payments to be made to Optionee.  In any event, Optionee shall either
(i) make available to the Company, promptly when requested by the Company,
sufficient funds to meet the requirements of such withholding, or (ii) to the
extent permitted by the Committee, irrevocably authorize the Company to withhold
from the Shares otherwise issuable to Optionee as a result of such exercise a
number of Shares having a fair market value, as of the date the withholding tax
obligation arises (the "Tax Date") which alone, or when added to funds paid to
the Company by Optionee, equal the amount of the minimum withholding tax
obligation (the "Withholding Elections") and the Company shall be entitled to
take and authorize such steps as it may deem advisable in order to have such
funds made available to the Company out of any funds or property due or to
become due to Optionee. Optionee's Withholding Election may only be made prior
to the Tax Date and may be disapproved by the Committee. The Committee may
establish such rules and procedures as it may deem necessary or advisable in
connection with the withholding of taxes relating to the exercise of the Option.

<PAGE>
 
                                       6

          10.  Notices.  Each notice relating to this Agreement shall be in
               -------                                                     
writing and delivered in person or by certified mail to the proper address.
Each notice to the Company shall be addressed to it at its principal office,
attention of the Chief Financial Officer, with a copy to the Company's
Secretary.  Each notice to Optionee (or other person or persons then entitled to
exercise the Option) shall be addressed to Optionee (or such other person or
persons) at Optionee's most recent address on the books of the Company.  Anyone
to whom a notice may be given under this Agreement may designate a new address
by notice to that effect.  Each notice shall be deemed to have been given on the
day it is received.

          11.  Benefits of Agreement.  This Agreement shall inure to the benefit
               ---------------------                                            
of and be binding upon each successor of the Company.  Subject to Section 5,
rights granted to the Company under this Agreement shall be binding upon
Optionee's personal representatives and heirs at law.

          12.  Set-off.  If at any time Optionee is indebted to the Company,
               -------                                                      
Porex or any of their respective Affiliates, the Company may in the discretion
of the Board or the Committee (a) withhold from Optionee (i) following the
exercise by Optionee of an Option, Shares issuable to Optionee having a Fair
Market Value on the date of exercise up to the amount of indebtedness to the
Company or (ii) following the sale by Optionee of Shares received pursuant to
the exercise of the Option, amounts due to Optionee in connection with the sale
of such Shares up to the amount of indebtedness to the Company, or (b) take any
substantially similar action.  The Board or the Committee may establish such
rules and procedures as it may deem necessary or advisable in connection with
the taking of any action contemplated by this Section 12.

          13.  Captions.  The captions contained in this Agreement are for
               --------                                                   
reference purposes only and shall not affect the meaning or interpretation of
this Agreement.

          14.  Interpretation and Construction.  The Option shall be
               -------------------------------                      
administered by the Committee. The Committee shall have authority to interpret
and construe the terms of the Option, to make all determinations necessary or
advisable for the administration of the Option (including determinations
relating to the delivery of Shares of Common Stock in payment of the purchase
price of the Shares covered by the Option and any tax withholding obligations,
subject to compliance with any applicable rules promulgated under Section 16 of
the Exchange Act). The good faith interpretation and construction by the Board
or by the Committee of any provision of this Agreement shall be final and
conclusive and binding on the parties hereto.

<PAGE>
 
                                       7

          15.  Governing Law.  This Agreement shall be construed in accordance
               -------------                                                  
with and governed by the laws of the State of New Jersey without regard to any
principles of conflict of laws.

          16.      Amended Class B Plan.  This Agreement, the Option and the
                   --------------------                                     
Common Stock issued pursuant to the exercise of the Option shall be subject to
the Amended Class B Plan, the terms of which are incorporated by reference
herein.  In the event of any inconsistency between this Agreement and the Plan,
the Plan shall govern.

                                   EXECUTION
                                   ---------

          The parties signed this Agreement as of the day and year first above
written, whereupon it became binding in accordance with its terms.


                                      SYNETIC, INC.
                                
                                
                                      By:  /s/ Anthony Vuolo
                                          --------------------
                                          Name:  Anthony Vuolo
                                          Title: Vice President and Chief
                                                   Financial Officer
                                
                                
                                           /s/ Kim A. Davis
                                          --------------------
                                               Kim A. Davis