Kangaroo

When a crazy man and his two songs whip a cowboy with a bullwhip almost killing the cowboy, Matt rescues the cowboy from the severe whipping. When Matt asks Chester to untie the cowboy, the man makes threats to punish Chester for his sinful ways. As Chester is walking home from the Long Branch, the man and his two songs kidnap Chester. They bring Chester to their camp to stand trial in a Kangaroo court.
Since they think Chester interfered with the with the whipping of the cowboy, they plan to cut off Chester's hand. One of the crazy man's sons starts to feel some compassion for Chester and attempts to save Chester from this punishment.
Just as the crazy man is about to hit Chester with an ax, the man is shot down. Chester is surprised when he learns who saved him.

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S05E06 - Tail to the Wind