The Source Code is a mystery thriller about two people, unknown to each other, whose rational worlds are suddenly transformed into places of unimaginable danger and terror. Sarah Wynter inherits $2 billion which, within hours, is stolen by computer hackers in India and the Russian mafia. John Ambrose, a Virginia lawyer, finds his identity has been stolen and used by the Cali drug cartel to traffic drugs and launder drug money. In their frantic quest to stay alive, their paths cross and they find themselves thrust into a world inhabited by forces of evil unlike those they had ever known. Alarm bells are set off at the Department of Homeland Security, the FBI and the CIA, and the paths of John Ambrose and Sarah Wynter soon cross. And John Ambrose becomes the target of a world-wide manhunt.