The Simpsons

500 Keys

E21    May 15, 2011    23m    TV-14
Add Show to Watchlist
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.
Where to Watch 500 Keys
Cast of 500 Keys
  • Dan CastellanetaHomer Simpson / Abe Simpson / Barney Gumble / Krusty (voice)
  • Julie KavnerMarge Simpson / Patty Bouvier / Selma Bouvier (voice)
  • Nancy CartwrightBart Simpson / Nelson Muntz / Ralph Wiggum (voice)
  • Yeardley SmithLisa Simpson (voice)
  • Hank AzariaMoe Szyslak / Chief Wiggum / Apu / Comic Book Guy / Carl (voice)
  • Harry ShearerNed Flanders / Mr. Burns / Smithers / Skinner / Lenny (voice)
  • Albert BrooksHank Scorpio (voice)

Take Plex everywhere

Watch free anytime, anywhere, on almost any device.
See the full list of supported devices