Gangster Moran (Edward Keane) gives Joe Murphy (Charles Quigley) several thousand dollars to bet on a horse race, the horse wins and Joe takes off with the money. Moran informs Mike Murphy (Frank Sherida), Joe's father, that no harm will come to Joe if Mike doesn't interfere with the robbing of stores on his beat. Joe's policeman brother, Terry Murphy (Dick Purcell), learns of the plot and sets out to free his father and brother of Moran's threats.