Willis Newcomb and Bart Carroll head a gang engaged in smuggling wanted-American criminals back into the United States from Mexico. Operating from Sharperville, an oil town on the American side of the border, they transport their human cargo in oil drums loaded on trucks. Border Patrolman Tom Sharper intercepts one of the trucks but is overpowered and left for dead. Carroll, having already been paid for the job and not wanting any evidence to walk around, get caught and lead back to him, backs the human-cargo trucks to the edge of a cliff and sends the drums crashing to the boulder far below. Judge Cookie Bullfincher and Border Patrolman Roy Rogers conduct a search for the missing Tom, but the crooks have gone back for him and find him in a state of amnesia. They rob the bank and pin it on Tom. It is now up to Roy to clear his friend and also put an end to Carroll's human-smuggling racket.
Roy Rogers
as Roy Rogers
Gail Davis
as Susan Hathaway
Andy Devine
as Judge Cookie Bullfincher
Francis Ford
as Alf Sharper
Roy Barcroft
as Henchman Bart
Clayton Moore
as Tom Sharper
Robert Strange
as Willis Newcomb
Trigger
as Trigger - Roy's Horse
Mike Ragan
as Rocco - Henchman (as Holly Bane)
Lane Bradford
as Butch - Henchman
John Bagni
as Rollins - Smuggled Criminal
Clarence Straight
as Jeb - Defendant
