Heathcliff and the Catillac Cats

Raiders of the Lost Cat [Heathcliff] (1x125)

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Heathcliff takes Sonja to an Egyptian Museum for her birthday. There, two spies mistake Heathcliff as an old Egyptian cat king that has returned to life. They decide to "rescue" him and return him to Egypt. Hector, Wordsworth and Mungo also hear of the party and attempt to crash it.