Frankie Darro, Dick Purcell, Judith Allen, Lillian Elliott, Don Rowan, William Ruhl, Lew Kelly, Ralph Peters, Max Marx, Jean Joyce, Cliff Howell, Joe Lynch, Wilbur Mack
Skipper Murphy is serving as trainer and inspiration for his brother Red Murphy training for a world championship title bout. Trouble comes for the Murphys when Red runs up against a gambling syndicate and is put on the spot to throw the fight.