The boys are working at the local boxing arena where their friend, Jimmy Higgins, is boxing. During a crooked match Jimmy is killed. The boys seek out his older brother, Johnny, a former boxer who gave up the sport rather than go crooked, and help train him to get back in the ring. They try to get him a shot at the title, and when they do the same crooked gangsters that were behind Jimmy's death try to get Johnny to take a dive.
Leo Gorcey
as Slip Mahoney
Huntz Hall
as Sach
Gabriel Dell
as Gabe Moreno
Frankie Darro
as Johnny Higgins
Lyle Talbot
as Blinky Harris
William Benedict
as Whitey
David Gorcey
as Chuck
Benny Bartlett
as Butch
Bert Conway
as Dynamite Carson, the Champ
Evelyn Eaton
as Bunny Talbot (as Evelynn Eaton)
Bernard Gorcey
as Louie
Teddy Infuhr
as Boomer Higgins
