FBI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。Follows a deep-cover operative named Martin Odum, who has an uncanny ability to transform himself into a different person for each job. But his own identity comes into question when a mysterious stranger suggests that Martin isn't who he thinks he is.