Frank is a diamond thief across California, he and his best friends fly to the wall, the underworld takes a fancy to his talent and hopes to cooperate, and the police pursue him from time to time; eager to be a mother's girlfriend, adopt a child with him; after the last diamond theft, he decided to quit and spend a simple life with his girlfriend. But the police and gangs pushed him into a corner, killing his partner and kidnapping his girlfriend and child, he decided to burn his bridges and fight. This film is the debut of action film director Michael Mann, photography, lighting, editing, soundtrack, are very outstanding, at the bottom of the director's future style.