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                                                                   EXHIBIT 10.52

                   SECOND AMENDMENT TO EMPLOYMENT AGREEMENT
                                      AND
                     AMENDMENT TO STOCK OPTION AGREEMENTS


     This Second Amendment to Employment Agreement dated as of September 11,
2000 (hereinafter referred to as "Amendment"), is by and between FirstWorld
                                  ---------
Communications, Inc., a Delaware corporation (the "Company") and Paul C. Adams
                                                   -------
("Executive") (collectively, the "Parties").
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                                   RECITALS

     A.   The Parties have previously entered into an Employment Agreement dated
          as of January 21, 1999, which was amended pursuant to a First
          Amendment to Employment Agreement dated as of January 27, 2000 (both
          of which are hereinafter referred to as "Employment Agreement").
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     B.   The Parties have previously entered into the Employee Stock Option
          Agreements dated April 15, 1999 and December 31, 1999, (hereinafter
          collectively referred to as "Prior Option Agreements").
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     C.   Pursuant to the terms of following amendments, the Parties mutually
          desire to: 1) extend the period of employment of Executive through and
          including August 31, 2001 under the same terms and conditions as
          contained in the Employment Agreement; 2) grant additional options,
          and under certain circumstances provide for a longer period in which
          to exercise options; and 3) increase in the Executive's bonus
          opportunity.

                                   AGREEMENT

     IN CONSIDERATION of the foregoing, the mutual covenants contained herein
and other good and valuable consideration, the sufficiency of which is hereby
acknowledged, the Parties hereby agree to amend the Employment Agreement as
follows:

     1.   Section 2 Term of the Employment Agreement is deleted in its entirety
                    ----
and amended to read as follows:

          Term.  The period of employment of Executive by Company hereunder (the
          ----
          "Employment Period") shall commence on January 21, 1999 (the

          "Commencement Date") and shall continue through August 31, 2001.  The
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          Employment Period may be sooner terminated by either party in
          accordance with Section 5 of this Agreement.

     2.   Section 4(b) Annual Bonus of the Employment Agreement is deleted in
                       ------------
its entirety and amended to read as follows:

          Annual Bonus.  The Board's Compensation Committee (the "Compensation
                                                                  ------------
          Committee") or its delegate shall review Executive's performance at
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          least once quarterly during each year of the Employment Period to
          review the Executive's performance pursuant to the procedures and
          terms of Company's Quarterly Bonus Plan ("Bonus Plan"), as in effect
          from time to time.  The percentage of Executive's Salary to be used
          for calculations under the Bonus Plan shall be an amount equal to 50%
          of the Executive's Base Salary.  The Executive's Bonus shall be paid
          pursuant to the terms and conditions of the Bonus Plan.

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     3.   Additional Grant of Stock Options ("New Option Agreement"):
                                              --------------------

          Effective as of the date of this Amendment ("Option Grant Date"),
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          Executive shall be awarded a stock option (the "Stock Option") to
                                                          ------------
          purchase Thirty-Five Thousand (35,000) shares of the Company's Series
          B Common Stock, par value $.0001 per share (the "Common Stock").  The
                                                           ------------
          shares of Common Stock subject to the Stock Option shall vest in
          increments of Fourteen Thousand (14,000) shares on August 1, 2001; Ten
          Thousand Five Hundred (10,500) shares August 1, 2002; and Ten Thousand
          Five Hundred (10,500) shares on August 1, 2003.  The Purchase Price
          for the Common Stock covered by the Option shall be equal to the fair
          market value of the Common Stock as measured by the closing price of a
          share of Common Stock on NASDAQ on the trading date of the Option
          Grant Date.  The Stock Option will be granted under the 1999 Equity
          Incentive Plan of FirstWorld Communications, Inc. (the "Plan") and the
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          terms and conditions of the Stock Option will be determined in
          accordance with the Plan; provided however, to the extent such terms
          of the Plan or the New Option Agreement conflict with the terms of the
          Employment Agreement, as amended, the terms of the Employment
          Agreement will control.  To the extent permissible under applicable
          law and the Plan, the Stock Option granted under the New Option
          Agreement will be granted as incentive stock options.

     4.   Consistent with Section 4(c) Stock Options of Executive's Employment
                                       -------------
Agreement, Section 5.3 Change in Control of the Prior Option Agreements shall
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read as follows:

          Change in Control.  Notwithstanding any terms in the Plan to the
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          contrary, this Option Agreement, the Employment Agreement, as amended,
          or otherwise, all of the Options granted hereunder shall become vested
          and exercisable immediately prior to such transaction in the event of
          the sale of all or substantially all of the Company's assets or a
          merger or consolidation in which the Company is not the surviving
          entity, or the Company's stockholders prior to the transaction own
          less than 50% of the voting power of the Company's outstanding
          securities immediately following the transaction.

     5.   Section 5.3 of the New Option Agreement shall read as follows:

          Change in Control and Accelerated Vesting.  Notwithstanding any terms
          -----------------------------------------
          in the Plan to the contrary, this Option Agreement, the Employment
          Agreement, as amended, or otherwise, all of the Options granted
          hereunder shall become vested and exercisable immediately prior to
          such transaction in the event of the sale of all or substantially all
          of the Company's assets or a merger or consolidation in which the
          Company is not the surviving entity, or the Company's stockholders
          prior to the transaction own less than 50% of the voting power of the
          Company's outstanding securities immediately following the
          transaction.  In addition, upon termination of Executive's employment
          by the Company without Cause or by the Executive for Good Reason prior
          to the expiration of the Employment Period, those Options granted
          hereunder that would otherwise become vested on or before August 31,
          2001 shall become vested and exercisable.

     6.   Section 3.3(c) Expiration of Option of the Prior Option Agreements
                         --------------------
shall read as follows:

          If the Optionee's employment is terminated by the Company without
          Cause or by the Optionee for Good Reason, pursuant to Optionee's
          Employment Agreement, as amended, the expiration of the later to occur
          of: (i) August 31, 2001, or (ii) thirty (30) days from the Date of
          Termination of Employment.

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     Executive understands that amending the Prior Option Agreements to extend
the opportunity to exercise the Options may adversely affect his tax
consequences under such Prior Option Agreements.

     7.   Section 3.3(c) Expiration of Option of the New Option Agreement shall
                         --------------------
read as follows:

          If the Optionee's employment is terminated by the Company without
          Cause or by the Optionee for Good Reason, pursuant to Optionee's
          Employment Agreement, as amended, the expiration of the later to occur
          of: (i) August 31, 2001, or (ii) ninety (90) days from the Date of
          Termination of Employment.

     8.   Section 12 Notice of the Employment Agreement is amended to read as
                     ------
follows:

          Notice.  For the purposes of this Agreement, notices, demands and all
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          other communications provided for in this Agreement shall be in
          writing and shall be deemed to have been duly given when delivered
          either personally or by United States certified or registered mail,
          return receipt requested, postage prepaid, addressed as follows:

          If to Executive:    Paul C. Adams
                              1541 Valley View Court
                              Golden, CO  80403

          If to the Company:  FirstWorld Communications, Inc.
                              8390 East Crescent Parkway, Suite 300
                              Greenwood Village, CO  80111
                              Attn: General Counsel
                              Facsimile: (303) 874-2461

          or to such other address as any party may have furnished to the others
          in writing in accordance herewith, except that notices of change of
          address shall be effective only upon receipt.

     9.   Executive acknowledges that he may be employed by a subsidiary of the
Company, however, the Company will remain liable for all obligations contained
in the Employment Agreement.

     10.  The Employment Agreement and the Prior Option Agreements are deemed
amended to reflect the changes contemplated by this Amendment. Except as
expressly modified herein, the Employment Agreement and Prior Option Agreements
shall remain in full force and effect in accordance with their terms and
conditions.

     11.  Capitalized terms in this Amendment that are not otherwise defined
herein shall have the same meaning as in the Employment Agreement, the Prior
Option Agreements or the New Option Agreement.

     12.  The Parties agree to execute, deliver and amend such documents as are
reasonably necessary accomplish the Parties' intent hereunder.

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     IN WITNESS WHEREOF, the Parties hereto have executed this Amendment on the
date first above written.


FIRSTWORLD COMMUNICATIONS, INC.,
a Delaware corporation



By:  /s/ David J. Gandini                    /s/ Paul C. Adams
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Name:  David J. Gandini                      Paul C. Adams
Title: Executive Vice President and
       Acting Chief Operating Officer

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