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 decide whether or not to inform Sloane of Sydney's suspicious activities. But Jack intervenes and covers for Sydney who later finds Vaughn who helps her try to track down her mother Irina who's searing for a Rimbaldi artifact called 'the Bible.' 　　译文(2): 悉尼发现自己与失散多年的母亲伊琳娜 · 德雷夫科(Irina Derevko)面对面，她对女儿的意图清晰得令人毛骨悚然。然而，悉尼设法逃脱和重新加入杰克和威尔在他们的逃离台湾。回到洛杉矶之后，悉尼继续寻找沃恩，不知道他是死是活，因为他在台北被一道水墙冲走了。当威尔得知 SD-6的真相以及希德妮作为双重间谍的生活时，他的生活就永远改变了。此外，迪克森必须决定是否将悉尼的可疑行为通知斯隆。但是杰克介入并为希德妮掩护，后来她找到了沃恩，沃恩帮她找到了她的母亲伊琳娜，伊琳娜正在寻找一件叫做“圣经”的兰波第艺术品。'