DETAIL

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.

The Simpsons - Season 22 Episode 21 : 500 Keys
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TitleThe Simpsons
First Air DateDec 17, 1989
Last Air DateMay 12, 2019
Number of Episodes663
Number of Seasons31
GenresAnimation, Comedy
NetworksFOX
Casts, , , ,
Alternative TitlesLos Simpson, Die Simpsons, Los Simpsons, Los Simpson, The Simpsons, Simpsonlar oilasi
Plot Keywords
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