With his clever tall tales, old prospector Henry Shannon talks Charlie Wooster into coming with him to search for a gold mine. When Hawks finds out about this, he rides out after the two men, along with Shannon's grandson Duke. Also following the old men are three men who hope to grab the gold for themselves.

Jim Bridger, who became Flint's father after his parents died, arrives at the wagon train. Flint is delighted until he realizes Bridger is working as a scout for an Army general who commandeers the train to save troops trapped by Utes.