 When Sheriff Jeff Connor (Jack Rockwell) of Powder River cannot stop the crime wave, his young son, Larry (Mickey Kuhn), writes to the Durango Kid for aid. Taggart (Edmund Cobb), the saloon owner, is the secret head of the outlaws, while Connor s brother Bill (Ed Cassidy) is in cahoots with him. Steve Randall (Charles Starrett), the Durango Kid, and his pal, Smiley Butterbean (Smiley Burnette), arrive in time to stop a stagecoach holdup, and Steve is made a deputy sheriff. Taggart has one of his men, Slade (Ted Mapes), pose as the Durango Kid and while he is speaking to the townspeople, the rest of the outlaw gang pillages the town, and this somewhat damages the Durango Kid in the eyes of Larry and his sister Doris (Adelle Roberts as Adelle Roberts.) Steve suggests that Sheriff Connor visit the government about a railroad project, and Taggart instructs Slade and the gang leader (Bob Wilke) to kill Connor on his trip back.