While raising cash to pay a debt, a Vegas gambler tricks a night club crooner there who looks like him to play him for a bit.The gambler's Latina girlfriend opens the eyes of the prissy crooner.

A series of reversals bring two desperate people together. When a saloon owner is framed by his partner for a stagecoach robbery, he fights to secure an acquittal.

Cuban Fireball is a vehicle for the combustible talents of Estelita Rodriguez, here cast as "herself." The plot finds Estelita arriving in Los Angeles to claim a multimillion-dollar inheritance. To fend off fortune hunters, she disguises herself as a meek little old lady.