HavingwokenupinHongKong,withnomemoryforthelasttwoyears(!),SydneyreturnstoLosAngelestotrytopiecetogetherthelasttwoyearsofherlifeanddiscoversthefatesofherfriendsandfamily:VaughnhasmarriedthinkingthatSydneywaslongdead;MarshallishavingababywithCIAtechexpertCarrieBowman;andDixonisnowthenewdivisionheadoftheL.A.officebranchoftheCIA.SydneyalsolearnstheshockingfatesofJackandSloane;theformerisinCIAcustodyforcommunicatingwithIrinawhomstillisinhiding,whilethelatterislivinginSwitzerlandunderhousearrestinexchangeforco-operationwiththeCIA.SydneyisgrantedtemporaryCIAclearanceonacasethatmayhelpherregainhermemoryandshemeetsanewenemygroupcalledTheCovenant
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