Out West (1947)

"The Stooges take refuge in the Red Dog Saloon, where a pretty girl named Nell informs them that the notorious Doc Barker has murdered her father and has the Arizona Kid locked up downstairs."

The stooges go out west for Shemp's health and get mixed up with some bad guys. The villains have locked up the Arizona Kid and their leader plans to marry his girl, Nell. The boys help the Arizona Kid escape and he rides to fetch the Cavalry. Somehow, the stooges manage to defeat the bad guys before the Cavalry arrives.