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EPISODE · HULU
The Simpsons

Season 22 · Episode 21

Landed Sun, 15 May 2011 · 20:00 your time · 1 episode · 30m

Season 22, Episode 21 of The Simpsons aired Sunday, 15 May 2011 at 8pm ET on Hulu.

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EPISODES0 of 1 watched
  1. S22E21500 Keys30mWhen the Simpsons discover a collection of keys to every door in Springfield, Lisa stumbles upon an eerie hidden classroom beneath Springfield Elementary School. When she shares her discovery with Principal Skinner, the secret room mysteriously disappears and he takes the only key away. A determined Lisa uses her detective skills to lead her back to the room to solve an old school mystery.
NEXT IN SEASON 22
Episode 22 · season finale
Sun 22 May · 20:00
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The Simpsons
38 seasons · 802 episodes · airing
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Streaming on Hulu in United States · also on Disney+.

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