HavingwokenupinHongKong,withnomemoryforthelasttwoyears(!)、sydneyreturns tolosangelesotrytopiecitizetogether thelastweearliefeanddiscoversthefatesofherfriendandfamily:vaughnhasmarriedthinkingthatsydneywaslondead;MarshallishavingababywithCIAtechexpertCarrieBowman;和dixonsnowthenewdivisionheadofthel。a . officebranchoftechia . sydneyalslearnsteshockfatesofjackandsloane;前者用于与irinawhomstillinghiding通信,而后者用于与theCIA合作。sydneyis granted temporary CIA clearances on case thamayhelpherregainh ermemorandshemeetsanewenemygroupcallthevenant。