Plot: Zim's Yuletide plan to overtake Earth by posing as Santa starts to backfire when he takes on characteristics of the Jolly Old Elf. Dib, meanwhile, tries to save the population from impending doom

Invader ZIM - Season 2 - The Most Horrible X-mas Ever (Episode 1)
Episode Aired On:
Tuesday, December 10 2002
22 years ago
Tuesday, December 10 2002
22 years ago
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Episode 2