A white midwestern girl moves to Chicago, where her new boyfriend is a black teen from the South Side with a rough, semi-criminal past.

U.S. Marshal Sam Gerard is accompanying a plane load of convicts from Chicago to New York. The plane crashes spectacularly, and Mark Sheridan escapes. But when Diplomatic Security Agent John Royce is assigned to help Gerard recapture Sheridan, it becomes clear that Sheridan is more than just another murderer.