"The Simpsons" Treehouse of Horror X (TV Episode 1999) Poster

(TV Series)

(1999)

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Storyline

The Simpsons attempt to cover up their accidental murder of Ned Flanders in "I Know What You Did-Iddly-Did." Then, Bart and Lisa become superheroes and save Lucy Lawless from the evil Collector in "Desperately Xeeking Xena." Finally, Homer's incompetence causes a Y2K apocalypse in "Life's A Glitch, Then You Die."

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