故事描述中情局深度卧底组（Deep Cover Operations，简称D.C.O.）特工Martin Odum（Sean Bean）拥有超出常人想象的适应能力——无论执行任何任务，他都能完美地将自己「转化」成不同形象、不同性格的人，从而成功混入敌人内部。然而一个神秘的陌生人声称Odum并不是真正的Odum，令Odum开始质疑自己的真实身份，整个事件变得扑朔迷离。 As the new season of this totally re-imagined show opens, Martin Odum is a fugitive, hiding out in present day London and wanted by the FBI for a crime he did not commit. He can't remember his life prior to an injury he suffered in the Iraq War, so he's searching for clues about his true identity with the help of CIA agent Nina Brenner. Meanwhile, in 2001, FBI agent Curtis Ball...