500 Keys

May 15, 2011

66.0%

The Simpsons - S22 - E21

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After finding the keys to every door in Springfield, Lisa finds a hidden room beneath the elementary school.

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The Simpsons: Season 22 - 22 Episode s

22x1 - Elementary School Musical
September 26, 2010
Marge sends Lisa to a performing arts camp, where counselors and fellow campers inspire her to embrace her creative side; upon returning to Springfield, Lisa grows restless with her boring suburban lifestyle.
22x2 - Loan-a-Lisa
October 3, 2010
Grampa gives each family member a portion of his savings; Lisa worries that Nelson's instant success with a new business venture might lure him away from continuing his education.
22x3 - MoneyBART
October 10, 2010
Lisa starts coaching Bart's Little League team; Marge and Bart spend the day at an amusement park, where former MLB manager Mike Scioscia gives Bart advice.
22x4 - Treehouse of Horror XXI
November 7, 2010
Worried about the effects of violent video games, Marge encourages Bart and Milhouse to play board games; Lisa becomes smitten with a new student, a vampire; while on a second honeymoon, Homer and Marge rescue a castaway who escaped from his ship.
22x5 - Lisa Simpson, This Isn't Your Life
November 14, 2010
Fearing that she will end up like Marge, Lisa pledges to focus solely on her academics and not get distracted by other things; Bart puts Nelson in his place and unintentionally earns the title of school bully.
22x6 - The Fool Monty
November 21, 2010
Mr. Burns becomes distraught at the town's apathetic reaction to the announcement that he has only weeks to live; Bart secretly takes Burns into the family's home.
22x7 - How Munched Is That Birdie in the Window?
November 28, 2010
After Bart nurses an injured bird back to health, Homer enters it in a race.
22x8 - The Fight Before Christmas
December 5, 2010
When the rest of the family seems to lack Christmas spirit, Marge contacts Martha Clause.
22x9 - Donnie Fatso
December 12, 2010
Homer ends up in the Springfield penitentiary after getting caught bribing an official; an FBI investigator offers Homer a way to reduce his jail time.
22x10 - Moms I'd Like to Forget
January 9, 2011
Marge reconnects with a close group of mothers she used to be friends with; Bart tries to break up their group when his playdates stop being fun.
22x11 - Flaming Moe
January 16, 2011
When Smithers transforms Moe's pub into a refined and trendy lounge, the establishment becomes Springfield's local gay hangout; Principal Skinner falls for the new, free-spirited music teacher.
22x12 - Homer the Father
January 23, 2011
When Homer insists Bart must earn the new dirt bike he wants, Bart comes up with a scheme; James Lipton interviews a TV cast.
22x13 - The Blue and the Gray
February 13, 2011
Moe attends a seminar in hope of gaining more confidence with women; Marge makes a change after discovering her gray hair.
22x14 - Angry Dad: The Movie
February 20, 2011
Bart's film about an angry father quickly becomes a critical favorite, winning him several awards.
22x15 - The Scorpion's Tale
March 6, 2011
During a field trip, Lisa discovers desert water that makes usually combative creatures get along; after getting kicked out of the retirement home, Grampa comes to live with the family.
22x16 - A Midsummer's Nice Dream
March 13, 2011
When Cheech and Chong stop in Springfield while on their reunion tour, Homer impresses Cheech so much he asks him to replace Chong; Principal Skinner forms a new comedy team with Chong; Marge tries to help a hoarder.
22x17 - Love Is a Many Strangled Thing
March 27, 2011
Marge persuades Homer to enroll in a fathering enrichment class; Bart becomes a school bully.
22x18 - The Great Simpsina
April 10, 2011
When the Great Raymondo takes Lisa on as his magician's assistant, she is conned into revealing the secret of his greatest trick to his nemesis.
22x19 - The Real Housewives of Fat Tony
May 1, 2011
Fat Tony and Marge's sister, Selma, fall in love and get married; Bart discovers a special ability.
22x20 - Homer Scissorhands
May 8, 2011
Homer opens his own hair salon after discovering he is a talented stylist; Milhouse professes his love for Lisa.
22x21 - 500 Keys
May 15, 2011
After finding the keys to every door in Springfield, Lisa finds a hidden room beneath the elementary school.
22x22 - The Ned-liest Catch
May 22, 2011
When Ned starts dating Mrs. Krabappel, he is surprised to learn how many of Springfield's men she has been with.

22x1 - Elementary School Musical

22x2 - Loan-a-Lisa

22x3 - MoneyBART

22x4 - Treehouse of Horror XXI

22x5 - Lisa Simpson, This Isn't Your Life

22x6 - The Fool Monty

22x7 - How Munched Is That Birdie in the Window?

22x8 - The Fight Before Christmas

22x9 - Donnie Fatso

22x10 - Moms I'd Like to Forget

22x11 - Flaming Moe

22x12 - Homer the Father

22x13 - The Blue and the Gray

22x14 - Angry Dad: The Movie

22x15 - The Scorpion's Tale

22x16 - A Midsummer's Nice Dream

22x17 - Love Is a Many Strangled Thing

22x18 - The Great Simpsina

22x19 - The Real Housewives of Fat Tony

22x20 - Homer Scissorhands

22x21 - 500 Keys

22x22 - The Ned-liest Catch

S0: Specials

S1: Season 1

S2: Season 2

S3: Season 3

S4: Season 4

S5: Season 5

S6: Season 6

S7: Season 7

S8: Season 8

S9: Season 9

S10: Season 10

S11: Season 11

S12: Season 12

S13: Season 13

S14: Season 14

S15: Season 15

S16: Season 16

S17: Season 17

S18: Season 18

S19: Season 19

S20: Season 20

S21: Season 21

S22: Season 22

S23: Season 23

S24: Season 24

S25: Season 25

S26: Season 26

S27: Season 27

S28: Season 28

S29: Season 29

S30: Season 30

S31: Season 31

S32: Season 32

S33: Season 33

S34: Season 34

S35: Season 35

S36: Season 36

S37: Season 37