Fivemonthslater.SydneyquitstheCIAandjoinsaBlackO sunitcalled"AuthorizedPersonnelOnly"alongsideDixon,Jack,Vaughnand...Sloanewhomforlimitedimmunityisco-o eratingwiththeAPO.Meanwhile,thetruthSydneyfoundoutinWittenbergendangersherrelationshi withJack,andeventuallysherevealstheawfultruthtoVaughn:aboutherfatherhavingIrinamurderedoverayearearlier