An American black bear named Moses brings to the surface the lack of respect a father has for his son. When the father is paralyzed in a fight with Trampas, he goads the son into fighting a duel with Trampas for revenge. Trampas refuses it, but cannot ignore it.

A friend has been framed for the murder of a woman's husband in Montana. The Virginian and Trampas go there to investigate the charge as they believe their friend, who says he is innocent even though he is known to them as a womanizer.