In the Mediterranean Sea, Italian fishermen rescue an unconscious American (Matt Damon) floating adrift with two gunshot wounds in his back. They tend to his wounds, and when the man wakes, they find he suffers from dissociative amnesia. He has no memory of his own identity, while he retains his speech and finds himself capable of advanced combat skills and fluency in several languages. The skipper finds a tiny laser projector under the man's hip that, when activated, gives a number of a safe deposit box in Z