Jaimie and Linc come across a bounty hunter and his prisoner, a mountain man who he is bringing in to hang. The mountain man talks Jaimie into releasing him with a tall tale of a fortune in gold over the hill.

Three new passengers join the wagon train: a drunken blowhard, a killer posing as a marshal and a wounded traveler. Seeing an old derelict being harassed by thugs, Doc and Jaimie invite the man to join them on the wagon train. The old codger interests Jaimie and the other kids with his stories about past adventures on the frontier. But he doesn't tell anyone that he recognizes the "U.S. Marshal" who stops by with his wounded prisoner as a killer outlaw, because the outlaw knows a secret about the old man that he'd rather not have revealed as well.