A goverment agent who is a drug addict is targeted for extermination when he is marked as a liability.

Bourne, is pulled from the sea suffering from amnesia with a pair of bullet wounds in his back. His only clue to his own identity is a bank account number etched on a capsule implanted in his body. He finds the Zurich bank where money, a gun, and several passports with different names await. He quickly realizes he can trust no one and offers a German gypsy named Maria ten thousand dollars for a ride to Paris. With Maria's reluctant help, Bourne edges...