Fully Restored! The head of an outlaw gang, Jim Lassiter, is behind a string of mail robberies in Red Valley. Armed with a scheme to expose this no-gooder, postal inspector Gene Autry and Smiley Burnette arrange a dangerous set-up to expose their nefarious scheme.
Set during the Civil War and supposedly based on a true incident, SILVER CANYON depicts a band of Southern marauders who dressed up as Union soldiers and pillaged Federal supply lines. Gene Autry is a cavalry scout who is in hot pursuit of the guerilla leader, Wade McQuarrie (Jim Davis), aided in his endeavor by his sidekick Cougar Glaggett (Pat Buttram). Together the pair follow the renegades to a frontier Army post called Gateway, which is under the command of Colonel Middler; frequent Autry costar Gail Davis plays Middler's daughter Dell, while Middler's son Walt is a McQuarrie sympathizer, that is until Dell and Gene are taken captive by the guerillas. They manage to escape for a final faceoff with their quarry, and Walt sees the error of his ways.