Season 18's annual trio of Halloween stories:
"Married To The Blob" - Homer consumes a mysterious green substance from a meteorite landing that turns him into a giant blob with an insatiable, cannibalistic appetite.
"You Gotta Know When to Golem" - Bart discovers a golem (a giant clay doll associated with Jewish mysticism) backstage at Krusty's show and uses it to do his bidding.
"The Day the Earth Looked Stupid" - After being fooled by H.G. Wells' War of the Worlds, the citizens of Springfield in 1938 react with nonchalance to a real alien invasion.