Lindsay gets suspicious when Rebecca seems to be secretly awaiting an important letter - and realizes just how much she was right when the letter finally arrives. Ellenor gets a hysterical call from a client, who ran over a man in the street while drunk, and is shocked to discover exactly who he hit. Hellen prosecutes two boys accused of rape and murder, each accusing the other, and ends up making a deal with the wrong one.
《离亲叛众》改编自萨迪·琼斯（Sadie Jones）的同名小说。这部小说是萨迪·琼斯的出道作品，一出版即深获好评，在文坛上获奖无数，版权销售21国，英美热卖过100万，蝉联纽约时报，泰晤士报各大畅销书榜。本次BBC改编版迷你剧由萨迪·琼斯本人撰写剧本，让小说和影像化作品实现了完美的过渡。从小的时候开始，刘易斯的父亲就在战场征战，他从小跟母亲一起生活成长。7岁那年，父亲从战场回来，一家团聚，但刘易斯的母亲却在一次野餐中意外溺水身亡。没过多久，父亲就与一名年轻女子再婚，而刘易斯却一直到成年都没有走出母亲离去的阴影。他叛逆，自虐，甚至违反法律，孤独的内心一直得不到温暖。在跌跌撞撞之中，刘易斯寻觅着生存的意义。@Hyperay
警探 Naia Thulin 与曾短暂离开的搭档 Mark Hess 再度联手，调查一宗 41 岁女性被害的谋杀案件。案件表面看似孤立，却逐渐显露出错综复杂的线索，将两人引向更加阴暗、危险的真相深处。 本季除 达妮察·丘尔契奇（Danica Curcic）、米克尔·福尔斯加德（Mikkel Boe Følsgaard） 等原班主演回归外，索菲·格拉宝（Sofie Gråbøl） 等新演员确认加盟。
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.'
