Set against the violent streets of Chicago this is the story of mob boss, Al Capone's volatile relationship with his brother, Jimmy. After a gang murder Jimmy flees town and settles down in the mid-West where he becomes the local marshall. Meanwhile Al has become the ruthless crime lord of Chicago. When Al puts a hit on a troublesome marshall who has been stopping his booze shipments. The hit fails so Al tries to buy the marshall off only to discover it is his long lost brother. Finally meeting again Jimmy refuses to join Al's reign of terror and they part with hatred on their lips.