Jason Bourne is found wounded and floating in the Mediterranean Sea by fishermen. He has no idea how he got there, or who in fact he is. His only hope is a Swiss bank account number found embedded under his skin. The bank account's safety deposit box contains cash, a gun, and numerous passports from various countries, some with the name "Jason Bourne", and some with other names. Bourne discovers he possesses highly trained martial arts, language, and memory skills. He also discovers someone definitely want him dead. So the plot questions to be resolved are: Why was he found wounded and in the sea? Why does he have so many passports? Why does he possess these peculiar skills? Who wants him dead? And why?