Fugitive of the Plains

Fugitive of the Plains is a 1943 American film directed by Sam Newfield.

Billy and his sidekick Fuzzy get word that crimes are being conducted in his name in nearby Red Rock County. Investigating the situation in the hopes of clearing his name, he discovers a gang headed by pretty Kate Shelly. Though they know who he is, he pretends to join the gang to smash it from the inside.

Source: Wikipedia