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                         MAGELLAN HEALTH SERVICES, INC.
                             1996 STOCK OPTION PLAN



         1.       Purpose.  The purpose of the Magellan Health Services, Inc. 
1996 Stock Option Plan is to motivate and retain officers and other key 
employees of Magellan Health Services, Inc. and its Subsidiaries who have major
responsibility for the attainment of the primary long-term performance goals of
Magellan Health Services, Inc.

         2.       Definitions.  The following terms shall have the following 
meanings:

         "Board" means the Board of Directors of the Corporation.

         "Change in Control" means the effective date of the occurrence,  at any
time after  November 30, 1995, of one or more of the following  events:  (i) the
sale, lease, transfer or other disposition, in one or more related transactions,
of all or substantially all of the Corporation's assets to any person or related
group of persons,  including a "group" as such term is used in Section  13(d)(3)
of the Exchange Act, (ii) the merger or consolidation of the Corporation with or
into another corporation, the merger of another corporation into the Corporation
or any other transaction, to the extent that the stockholders of the Corporation
immediately prior to any such transaction hold less than 50 percent of the total
voting power or of the voting stock of the surviving  corporation resulting from
any such transaction,  (iii) any person or related group of persons, including a
"group" as such term is used in Section  13(d)(3) of the Exchange  Act,  whether
such  person or group of  persons  is a  stockholder  of the  Corporation  as of
November 30, 1995, holds 30 percent or more of the voting power or of the voting
stock  of the  Corporation,  or  (iv)  the  liquidation  or  dissolution  of the
Corporation.

         "Code" means the Internal  Revenue  Code of 1986,  as amended,  and the
rules promulgated thereunder.

         "Committee"  means a  committee  of two or more  members  of the  Board
constituted and empowered by the Board to administer the Plan in accordance with
its terms.

         "Corporation" means Magellan Health Services, Inc., a Delaware 
corporation.

         "Director" means a member of the Board.

         "Disability"  means a  physical  or mental  condition  under  which the
Participant  qualifies  for (or will qualify for after  expiration  of a waiting
period)  disability  benefits  under  the  long-term   disability  plan  of  the
Corporation or a Subsidiary that employs such Participant.

         "Exchange Act" means the Securities Exchange Act of 1934, as amended.


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         "Fair  Market  Value"  means:  (1) if the Stock is listed on a national
securities  exchange (as such term is defined by the Exchange  Act) or is traded
on  the  Nasdaq   National   Market  System  on  the  date  of  award  or  other
determination, the price equal to the mean between the high and low sales prices
of a share of Stock  on said  national  securities  exchange  or on said  Nasdaq
National  Market System on that date (or if no shares of the Stock are traded on
that date but there were shares traded on dates within a reasonable  period both
before and after such date, the Fair Market Value shall be the weighted  average
of the means  between the high and low sales  prices of the Stock on the nearest
date  before and the nearest  date after that date on which  shares of the Stock
are traded);  (2) if the Stock is traded both on a national  securities exchange
and in the over-the-counter market, the Fair Market Value shall be determined by
the  prices on the  national  securities  exchange;  and (3) if the Stock is not
listed for trading on a national  securities  exchange  and is not traded on the
Nasdaq National Market System or otherwise in the over-the-counter  market, then
the  Committee  shall  determine the Fair Market Value of the Stock from time to
time in its sole discretion.

         "Option" means an Option granted pursuant to Section 6.

         "Participant"  means  an  employee  of  the  Corporation  or any of its
Subsidiaries  who is  selected to  participate  in the Plan in  accordance  with
Section 4.

         "Plan" means the Magellan Health Services, Inc. 1996 Stock Option Plan.

         "Stock" means the common stock, par value $0.25 per share, of the 
Corporation.

         "Stock  Option  Agreement"  means the written  agreement or  instrument
which sets  forth the terms of an Option  granted  to a  Participant  under this
Plan.

         "Subsidiary"  means any corporation,  as defined in Section 7701 of the
Internal  Revenue  Code of 1986,  as amended,  and the  regulations  promulgated
thereunder, of which the Corporation,  at the time, directly or indirectly, owns
50% or more of the outstanding  securities having ordinary voting power to elect
directors  (other  than  securities  having  voting  power  only by  reason of a
contingency).

         3.  Administration.  The Plan shall be  administered  by the Committee.
Subject to the  provisions of the Plan,  the  Committee,  acting in its absolute
discretion,  shall exercise such powers and take such action as expressly called
for under this Plan and, further, shall have the power to interpret the Plan, to
determine the terms of each Stock Option Agreement (subject to the provisions of
the Plan) and (subject to Section 18 and Rule 16b-3 under the  Exchange  Act, if
applicable)  to take such other action in the  administration  and  operation of
this Plan as the Committee deems equitable under the circumstances.  All actions
of  the  Committee  shall  be  binding  on the  Corporation,  on  each  affected
Participant  and on each other person  directly or  indirectly  affected by such
action. No member of the Board shall serve as a member of the

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Committee unless such member is a  "disinterested  person" within the meaning of
Rule  16b-3  under the  Exchange  Act.  The  Committee  shall  have the right to
delegate to the chief  executive  officer of the  Corporation  the  authority to
select  Participants  and to grant  Options  (except  to any  person  subject to
Section 16 of the Exchange Act), subject to any review, approval or notification
required by the Committee or as otherwise may be required by law.

         4.       Participation.  Participants in the Plan shall be limited to 
those officers and employees of the Corporation or any of its Subsidiaries who 
have been selected to participate in the Plan by the Committee acting in its 
absolute discretion.

         5.  Maximum  Number  of  Shares  Subject  to  Options.  Subject  to the
provisions of Section 9, there shall be 1,750,000  shares of Stock  reserved for
use under this Plan,  and such  shares of Stock  shall be reserved to the extent
that the Committee and the Board deems  appropriate from authorized but unissued
shares  of Stock or from  shares of Stock  which  have  been  reacquired  by the
Corporation.  Any shares of Stock subject to any Option which remain unpurchased
after the cancellation,  expiration, exchange or forfeiture of such Option shall
again become  available  for use under this Plan.  All  authorized  and unissued
shares  issued upon  exercise of Options  under the Plan shall be fully paid and
nonassessable shares.

         6. Grant of Options. The Committee,  acting in its absolute discretion,
shall have the right to grant Options to Participants  under this Plan from time
to time;  provided,  that the maximum  number of shares of Stock  issuable  upon
exercise  of  Options  shall not exceed  1,750,000,  subject  to  adjustment  as
provided in Section 9. No Option shall be granted after  December 31, 1999.  The
maximum number of Options that are granted to any  Participant  shall not exceed
500,000, subject to adjustment as provided in Section 9.

         7. Terms and  Conditions of Options.  Options  granted  pursuant to the
Plan shall be evidenced by Stock Option Agreements in such form as the Committee
from time to time shall  approve,  including any such terms and  conditions  not
inconsistent  with the  provisions  set forth in the Plan as the  Committee  may
determine;  provided,  that such Stock Option Agreements and the Options granted
shall comply with and be subject to the following terms and conditions:

                  (a) Employment.  Each Participant shall agree to remain in the
employ of and to render services to the Corporation or a Subsidiary  thereof for
such  period  as the  Committee  may  require  in the  Stock  Option  Agreement;
provided,  that such  agreement  shall not impose  upon the  Corporation  or any
Subsidiary  thereof any  obligation to retain the  Participant in its employ for
any period.

                  (b)      Number of Shares.  Each Stock Option Agreement shall
state the total number of shares of Stock to which it pertains.


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                  (c)      Exercise Price.  The exercise price per share for 
Options shall be Fair Market Value of the Stock on the date of grant, subject 
to adjustment as contemplated by Section 9.

                  (d) Medium and Time of Payment.  The  exercise  price shall be
payable upon the  exercise of the Option,  or as provided in Section 7(e) if the
Corporation adopts a broker-directed cashless exercise/resale procedure, in each
case in an amount equal to the number of shares then being  purchased  times the
per share exercise price. Payment shall be in cash, except that the Corporation,
in its sole  discretion,  may permit payment by delivery to the Corporation of a
certificate  or  certificates  for shares of Stock duly endorsed for transfer to
the Corporation with signature guaranteed by a member firm of the New York Stock
Exchange or by a national  banking  association.  In the event of any payment by
delivery of shares of Stock,  such shares  shall be valued on the basis of their
Fair Market Value  determined  as of the day prior to the date of  delivery.  If
payment is made by delivery of shares of Stock,  the value of such Stock may not
exceed the total  exercise price payment;  provided,  that the preceding  clause
shall not prevent delivery of a stock  certificate for a number of shares having
a  greater  value,  if the  number of shares to be  applied  to  payment  of the
exercise price is designated by the  Participant  and the  Participant  requests
that a certificate for the remainder shares be delivered to the Participant.

         In addition to the payment of the purchase price of the shares of Stock
then being purchased,  a Participant shall also,  pursuant to Section 16, pay to
the  Corporation  or  otherwise  provide for  payment of an amount  equal to the
amount,  if any,  which the  Corporation  at the time of exercise is required to
withhold  under the  income  tax  withholding  provisions  of the Code and other
applicable income tax laws.

                  (e) Method of Exercise.  All Options shall be exercised (i) by
written  notice  directed to the Secretary of the  Corporation  at its principal
place of  business,  accompanied  by payment of the option  exercise  price,  in
accordance with the foregoing subsection (d), for the number of shares specified
in the notice of exercise and by any  documents  required by Section 14, or (ii)
by  complying  with the  exercise and other  provisions  of any  broker-directed
cashless  exercise/resale  procedure  adopted by the Corporation and approved by
the  Committee,  and by  delivery of any  documents  required by Section 14. The
Corporation  shall make  delivery of such shares  within a reasonable  period of
time or in accordance  with  applicable  provisions of any such  broker-directed
cashless  exercise/resale  procedure;  provided,  that if any law or  regulation
requires the  Corporation  to take any action  (including but not limited to the
filing of a registration  statement under the Securities Act of 1933 and causing
such  registration  statement  to become  effective)  with respect to the shares
specified  in such notice  before their  issuance,  then the date of delivery of
such shares shall be extended for the period necessary to take such action.

                  (f) Term of Options. Except as otherwise specifically provided
in the Plan,  the terms of all Options  shall  commence on the date of grant and
shall expire not later than November 30, 2005.

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                  (g) Exercise of Options.  Options are exercisable  only to the
extent they are vested as provided  in Section 8. After  Options  have vested in
accordance with Section 8, such Options are exercisable at any time, in whole or
in part  during  their  terms  if the  Participant  is at the  time of  exercise
employed by the Company or a Subsidiary.  If a Participant's employment with the
Corporation  or any  Subsidiary is terminated for any reason other than death or
disability,  the vested  portion of each Option held by such  Participant on the
date of such  termination may be exercised for six (6) months following the date
of  termination  of  employment  (but not  after  expiration  of the term of the
Option).  In the event of the death or Disability of a  Participant,  the vested
portion of each Option held by such Participant on the date of such event may be
exercised  within  twelve  months of the date of such  event  (but not after the
expiration of the term of the Option).

         In the event of the death of a Participant,  the vested portion of each
Option  previously held by such Participant may be exercised within the time set
forth above by the executor, other legal representative or, if none, by the heir
or legatee of such Participant.

                  (h) Adjustments Upon Changes in Capitalization.  Upon a change
in  capitalization  pursuant  to Section  9, the number of shares  covered by an
Option and the per share option  exercise  price shall be adjusted in accordance
with the provisions of Section 9.

                  (i)   Transferability.   No  Option  shall  be  assignable  or
transferable  by the  Participant  except by will or by the laws of descent  and
distribution.  The designation of a beneficiary shall not constitute a transfer;
and, during the lifetime of a Participant,  all Options held by such Participant
shall be exercisable only by him or by his lawful representative in the event of
his incapacity.

                  (j)  Rights as a  Stockholder.  A  Participant  shall  have no
rights as a stockholder  with respect to shares  covered by his Option until the
date of the  issuance  of the shares to him and only after such shares are fully
paid. Unless specified in Section 9, no adjustment will be made for dividends or
other rights for which the record date is prior to the date of such issuance.

                  (k)      Miscellaneous Provisions.  The Stock Option 
Agreements authorized under the Plan may contain such other provisions not 
inconsistent with the terms of this Plan as the Committee shall deem advisable.

         8. Vesting.  Options granted under this Plan shall be exercisable  only
to the extent such  Options  have become  vested  pursuant to this Section 8. An
Option shall vest at the rate of 25 percent of the shares  covered by the Option
on each of the first  four  anniversary  dates of the grant of the Option if the
Participant is an employee of the Company or a Subsidiary on such dates.


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         9.  Change in  Capitalization.  If the Stock  should,  as a result of a
stock split or stock dividend, combination of shares,  recapitalization or other
change in the  capital  structure  of the  Corporation  or exchange of Stock for
other securities by reclassification or otherwise,  be increased or decreased or
changed  into, or exchanged  for, a different  number or kind of shares or other
securities  of the  Corporation,  or any other  corporation,  then the number of
shares covered by Options, the number and kind of shares which thereafter may be
distributed  or issued  under the Plan and the per share option price of Options
shall be  appropriately  adjusted  consistent with such change in such manner as
the  Committee  may deem  equitable  to prevent  dilution  of or increase in the
rights granted to, or available for, Participants.

         10.      Fractional Shares.  In the event that any provision of this 
Plan or a Stock Option Agreement would create a right to acquire a fractional 
share of Stock, such fractional share shall be disregarded.

         11. Successor Corporation. If the Corporation is merged or consolidated
with another  corporation  or other legal entity and the  Corporation is not the
surviving  corporation or legal entity, or in the event all or substantially all
of the  assets  or  common  stock of the  Corporation  is  acquired  by  another
corporation or legal entity, or in the case of a dissolution,  reorganization or
liquidation  of the  Corporation,  the  Board,  or the  board  of  directors  or
governing body of any corporation or other legal entity assuming the obligations
of the Corporation  hereunder,  shall either: (i) make appropriate provision for
the preservation of Participants' rights under the Plan in any agreement or plan
it may enter into or adopt to effect any of the foregoing transactions;  or (ii)
upon written notice to each  Participant,  provide that all Options,  whether or
not vested,  may be exercised  within thirty days of the date of such notice and
if not so exercised, shall be terminated.

         12. Change in Control.  Notwithstanding  any  provisions in the Plan to
the contrary,  in the event of a Change in Control, any unvested and outstanding
Options awarded to Participants under the Plan automatically  shall become fully
vested and exercisable in accordance with the terms thereof.

         13.  Non-Alienation  of  Benefits.  Except  insofar as  applicable  law
otherwise may require,  (i) no Options,  rights or interest of  Participants  or
Stock deliverable to any Participant at any time under the Plan shall be subject
in any  manner  to  alienation  by  anticipation,  sale,  transfer,  assignment,
bankruptcy,  pledge,  attachment,  charge or  encumbrance  of any kind,  and any
attempt to so  alienate,  sell,  transfer,  assign,  pledge,  attach,  charge or
otherwise  encumber any such amount,  whether  presently or thereafter  payable,
shall be void; and (ii) to the fullest  extent  permitted by law, the Plan shall
in no manner be liable for, or subject to, claims,  liens,  attachments or other
like proceedings or the debts, liabilities,  contracts,  engagements or torts of
any  Participant  or  beneficiary.  Nothing in this  Section 13 shall  prevent a
Participant's rights and interests under the Plan from being transferred by will
or by the laws of descent and distribution;  provided,  that no transfer by will
or by the laws of descent and distribution shall be effective to

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bind the  Corporation  unless  the  Committee  or its  designee  shall have been
furnished before or after the death of such Participant with a copy of such will
or such other  evidence as the  Committee  may deem  necessary to establish  the
validity of the transfer.

         14.  Listing  and  Qualification  of Shares.  The  Corporation,  in its
discretion,  may  postpone  the  issuance  or  delivery of shares of Stock until
completion of any stock exchange listing, or other qualification or registration
of such  shares  under any state or  federal  law,  rule or  regulation,  as the
Corporation  may consider  appropriate,  and may require any Participant to make
such representations,  including,  but not limited to, a written  representation
that the shares are to be acquired for  investment  and not for resale or with a
view to the  distribution  thereof,  and to furnish such  information  as it may
consider  appropriate in connection  with the issuance or delivery of the shares
in compliance with applicable  law, rules and  regulations.  The Corporation may
cause a legend or legends to be placed on such  certificates to make appropriate
reference  to such  representation  and to  restrict  transfer in the absence of
compliance with applicable federal or state securities laws.

         15. No Claim or Right Under the Plan. No employee of the Corporation or
any Subsidiary  shall at any time have the right to be selected as a Participant
in the Plan nor, having been selected as a Participant and granted an Option, to
be granted  any  additional  Option.  Neither the action of the  Corporation  in
establishing  the  Plan,  nor any  action  taken  by it or by the  Board  or the
Committee  thereunder,  nor any provision of the Plan, nor  participation in the
Plan,  shall be construed to give, and does not give, to any person the right to
be retained in the employ of the Corporation or any Subsidiary,  or interfere in
any way with the right of the  Corporation  or any  Subsidiary  to  discharge or
terminate any person at any time without  regard to the effect such discharge or
termination may have upon such person's rights, if any, under the Plan.

         16. Taxes. The Corporation may make such provisions and take such steps
as it may deem  necessary or  appropriate  for the  withholding  of all federal,
state,  local and other taxes  required by law to be  withheld  with  respect to
Options under the Plan, including,  but not limited to, (i) deducting the amount
required to be  withheld  from  salary or any other  amount  then or  thereafter
payable to a Participant,  beneficiary or legal representative, (ii) requiring a
Participant,  beneficiary or legal  representative to pay to the Corporation the
amount  required to be withheld as a condition of releasing the Stock,  or (iii)
complying   with   applicable   provisions  of  any   broker-directed   cashless
exercise/resale procedure adopted by the Corporation pursuant to Section 7(e).

         17. No Liability of Directors.  No member of the Board or the Committee
shall be  personally  liable  by  reason  of any  contract  or other  instrument
executed by such  member on his behalf in his  capacity as a member of the Board
or  Committee,  nor for any  mistake of  judgment  made in good  faith,  and the
Corporation  shall  indemnify  and hold  harmless  each  employee,  officer  and
Director,  to  whom  any  duty  or  power  relating  to  the  administration  or
interpretation  of the Plan may be allocated or  delegated,  against any cost or
expense (including counsel fees) or

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liability  (including any sum paid in settlement of a claim with the approval of
the Board) arising out of any act or omission to act in connection with the Plan
to the fullest  extent  permitted  or required  by the  Corporation's  governing
instruments and, in addition,  to the fullest extent of any applicable insurance
policy purchased by the Corporation.

         18.  Other Plans.  Nothing  contained in the Plan is intended to amend,
modify or rescind any previously approved compensation plans or programs entered
into by the Corporation or its  Subsidiaries.  The Plan shall be construed to be
in addition to any and all such plans or programs. No award of Options under the
Plan shall be construed as compensation  under any other executive  compensation
or employee benefit plan of the Corporation or any of its  Subsidiaries,  except
as  specifically  provided  in any such  plan or as  otherwise  provided  by the
Committee.  The  adoption  of the Plan by the Board  shall not be  construed  as
creating  any  limitations  on the power or authority of the Board to adopt such
additional  compensation  or  incentive  arrangements  as  the  Board  may  deem
necessary or desirable.

         19.  Amendment  or  Termination.  This Plan may be amended by the Board
from time to time to the extent that the Board deems  necessary or  appropriate;
provided,   no  such  amendment  shall  be  made  absent  the  approval  of  the
stockholders of the Corporation:  (1) if stockholder  approval of such amendment
is required for continued compliance with Rule 16b-3 of the Exchange Act, or (2)
if stockholder  approval of such  amendment is required by any other  applicable
laws or  regulations  or by the rules of any stock exchange as long as the Stock
is listed for  trading on such  exchange.  The  Committee  also may  suspend the
granting of Options under this Plan at any time and may  terminate  this Plan at
any time; provided, the Corporation shall not have the right to modify, amend or
cancel any Option granted before such  suspension or termination  unless (1) the
Participant consents in writing to such modification,  amendment or cancellation
or (2) there is a dissolution or liquidation of the Corporation or a transaction
described in Section 11 of this Plan.

         20.      Captions.  The captions preceding the sections of the Plan 
have been inserted solely as a matter of convenience and shall not, in any 
manner, define or limit the scope or intent of any provisions of the Plan.

         21.      Governing Law.  The Plan and all rights thereunder shall be 
governed by, and construed in accordance with, the laws of the State of Georgia,
without reference to the principles of conflicts of law thereof.

         22.      Expenses.  All expenses of administering the Plan shall be 
borne by the Corporation.

         23.      Effective Date.  The Plan shall be effective as of the date 
of its adoption by the Board, subject to approval of this Plan by the 
stockholders of the Corporation after the date of its adoption in accordance
with the requirements of Rule 16b-3 under the Exchange Act.

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