Bonanza

The Hunter (14x16)

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In what turned out to be the series finale, Little Joe is making a delivery for Ben when he meets Bill Tanner, a psychotic killer that is posing as a soldier he has killed. His delivery wagon stolen and sans supplies, food or water, Joe -- whom Tanner has called his "prey" -- tries to evade the well-stocked madman, who takes sadistic pleasure in his role as a predator.