Michael Jennings, a talented computer engineer has his short term memory erased to remove knowledge of his engineering in order to protect his. He expects to receive billions dollar for his most recent job, however, he is given a filled envelope contain a random object instead of money. This is a sign for his action in the past, with the erased memory, he tries to use the item in the envelope to find out what happen to him in the past. Later, he is arrested by the FBI who accuses him off murder and other offences.