One witness in a racketeering trial is killed with a booby-trapped car, and Stone worries that the remaining witness, Roy Chaffee, will be picked off by a hit man if he surfaces.

A prizefighter refuses to throw a fight, instead opting to throw the gangsters out the window of his hotel room. Injured, he hides in the hotel as both the police and mob close in.

Two retired brothers, both having worked as riggers for circuses many years before, are found murdered while a circus happens to be performing in San Francisco at the Cow Palace.

A mobster's son steals loot from his father and seeks protection from federal authorities in exchange for being a material witness against his father.