Sydney finds herself face-to-face with her long-lost mother, Irina Derevko, whose intentions for her daughter are made chillingly clear. However, Sydney manages to escape and rejoin Jack and Will in their escape from Taiwan. After arriving back in Los Angeles, 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. Will's life is forever changed when he learns the truth about SD-6 and Sydney's life as a double agent. Also, Dixon must de…
在CIA，心情沮丧的西德妮和沃恩交换意见。马歇尔开始收到绝密情报:Irina实践了自己的诺言，上传了替身的DNA。西德妮随即告诉威尔他的罪名被洗清，因为网上下载的DNA和他不匹配，而是一个Allison Georgia …
弗兰茜告诉Sark，CIA相信威尔是被人陷害。Irina得知Sark的通知，但她不许弗兰茜杀掉威尔。弗兰茜催眠了威尔，烧掉了他视网膜上的第二替身的标记。 杰克怀疑威尔偷走了托斯卡纳突袭行动的录像带，于是以间谍罪逮…
