Invalid rancher Henry Ludlow is so determined that daughter Judy not marry Basque sheepherder Antone Rose that he sells his land and joins the wagon train to head west. When Antone learns of this, he joins the train as well to marry her.

Bill meets young Barnaby West, who claims he is traveling west to see his father, a famous frontiersman. Bill invites him to join the wagon train. But he and the others wonder just how much, if any, of young Barnaby's story is really true.