Gene and Pat meet Pepito, a little Mexican boy who claims he knowns about a gold strike known as the Lost Chance. On their way into town, Gene finds out that the Cattlemens Association fund is short. Some members of the Cattlemens Association are really outlaws, and when they find out about this Lost Chance, they kidnap Pepito and make him lead the way to the Lost Chance, or else, they'll kill his mule, Amigo. Gene rides after the outlaws, and capture them, and saving Pepito, and Amigo.
