Sydney finds herself face-to-face with her mother, whose intentions for her daughter are made chillingly clear. Meanwhile Sydney continues her search for Vaughn, not knowing if he is dead or alive after being swept away by a wall of water in Taipei. Wills life is forever changed when he learns the truth about SD-6 and Sydneys life as a double agent. Dixon must decide whether or not to inform Sloane of Sydneys suspicious activities.