Lucky Losers - Leo Gorcey and the Bowery Boys

To solve the death of Slip and Sach's boss, the boys go to gambling school, then go undercover as croupiers in an illegal gambling house. Slip came to the conclusion that the club had something to do with his boss' death, so the gang set out to find his murderers. Louie then poses as a rich cattlemen gambler, as they gather the information to convict the killers.