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Season 22 > Episode 21 > 500 Keys

Title: 500 Keys
Position: Season 22 Episode 21
Air Date: 2011-05-15
Views: 9.150 times
Comments: 1
When 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. Free The Simpsons episodes at iwatchsimpsons.com allows you to watch The Simpsons online for free.
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