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Looking to watch The Simpsons Season 22 Episode 21 online? TV Fanatic is your destination for every paid and free streaming option of the The Simpsons S22E21 full episode from 1 affiliates.

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Episode Details

The Simpsons Season 22 Episode 21: "500 Keys"

The Simpsons discover a set of keys that can open any door in Springfield and soon discover a hidden classroom.