Johnny comes to a town where a man is on trial for ambushing a ranch foreman and stealing $10,000. The foreman identifies the man as the one who shot him, but the case has to be dismissed when the defendant's twin brother comes to the courtroom and the foreman can't tell them apart. Johnny has to investigate to find the guilty man.; Johnny has to stop train robbers who plan to wreck a train, steal a gold shipment, and escape on a railroad handcar.; Description of the operations of the Pony Express.; Facts about cowboy's chaps.; A wealthy rancher builds a stone corral for his horses, but renegade Indians find a way to steal them anyway.