Heathcliff and the Catillac Cats

Tally-Ho Heathcliff [Heathcliff] (1x113)

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Grandpa, Iggy and Heathcliff find themselves in the path of a group of people on horseback. It's a fox hunt, and both Iggy and Heathcliff are very sympathetic to the fox. Heathcliff teaches the frightened creature several tricks to foil the hunt, and saves the little guy's life.