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The Simpsons Season 21 Episodes

23 Episodes 2009 - 2010

Back-to-back episodes in Season 21 explore the characters' spiritual sides: Homer has an epiphany during a trip to Jerusalem with Ned Flanders in "The Greatest Story Ever D'ohed," while Mr. Burns finds religion after being sent to prison in "American History X-cellent." As for notable guest stars this season, Anne Hathaway returns for her second appearance in two years, this time voicing Krusty the Clown's new costar, while Sarah Silverman plays Bart's latest love interest and media mogul Rupert Murdoch (who owns the FOX channel) cameos as himself in the finale.

Episode 1

Homer the Whopper

Sun, Sep 27, 2009 30 mins

Season 21 opener: Homer gets the lead in a movie about a superhero who can take on the powers of every superhero in any comic book he touches. To whip Homer into superhero shape, the studio hires a celebrity fitness trainer (voice of Seth Rogen). It won't be an easy job.

Where to Watch
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Episode 2

Bart Gets a 'Z'

Sun, Oct 4, 2009 30 mins

The kids in Mrs. Krabappel's class think she needs to lighten up, so they spike her coffee with liquor. Unfortunately, she makes a fool of herself and Principal Skinner fires her. Her replacement is a cool guy---so cool that Bart feels guilty about getting Mrs. Krabappel fired.

Where to Watch
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Episode 3

The Great Wife Hope

Sun, Oct 11, 2009 30 mins

The Ultimate Punch, Kick and Choke Championship comes to town, and it's a predictably bad influence on the boys at Bart's school. Marge starts a campaign to ban the "sport" and the event's founder agrees to shut it down if she'll fight him and win.

Where to Watch
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Episode 4

Treehouse of Horror XX

Sun, Oct 18, 2009 30 mins

In "Treehouse of Horror XX," Lisa is drawn into a Hitchcockian revenge plot when she isn't chosen for an academic honor; Krusty invents a ghastly fast-food item that unleashes a plague of zombies; and Moe's microbrew has a vile secret ingredient.

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Episode 5

The Devil Wears Nada

Sun, Nov 15, 2009 30 mins

Marge poses for a "Philanthro-Chicks" calendar to raise money for charity, and the photographer eases her inhibitions with wine, resulting in some provocative photos that make her the talk of the town.

Where to Watch
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Episode 6

Pranks and Greens

Sun, Nov 22, 2009 30 mins

Bart learns of a legendary prankster (voice of Jonah Hill) from Springfield Elementary's past and becomes fast friends with the joker, who's now 19 years old and hasn't stopped doing pranks.

Where to Watch
The Simpsons, Season 21 Episode 6 image

Episode 7

Rednecks and Broomsticks

Sun, Nov 29, 2009 30 mins

The Simpsons get stranded in hill country and are introduced to the wonders of witchcraft and moonshine. Voice of Cassandra: Neve Campbell.

Where to Watch
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Episode 8

O Brother, Where Bart Thou?

Sun, Dec 13, 2009 30 mins

Bart decides he wants a brother after observing Lisa and Maggie's bond when the power goes out during a blizzard. Peyton, Eli and Cooper Manning, Kim Cattrall, Huell Howser and the Smothers Brothers have voice cameos as themselves.

Where to Watch
The Simpsons, Season 21 Episode 8 image

Episode 9

Thursdays with Abie

Sun, Jan 3, 2010 30 mins

Grampa becomes famous when a human-interest columnist publishes his anecdote about serving on a battleship in World War II that was struck by a torpedo. Guest Mitch Albom provides his own voice.

Where to Watch
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Episode 10

Once Upon a Time in Springfield

Sun, Jan 10, 2010 30 mins

In the 450th episode, Krusty the Clown teams up with a female costar, Princess Penelope (voice of Anne Hathaway), and before long he proposes marriage to her. Meanwhile, Mr. Burns and the workers clash at the nuclear power plant. Guest voices include Eartha Kitt and Jackie Mason.

Where to Watch
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Episode 11

Million Dollar Maybe

Sun, Jan 31, 2010 30 mins

Homer buys a lottery ticket that's a million-dollar winner, but he has to miss his date with Marge to do it. Chris Martin of Coldplay has a voice cameo as himself.

Where to Watch
The Simpsons, Season 21 Episode 11 image

Episode 12

Boy Meets Curl

Sun, Feb 14, 2010 30 mins

A planned evening of ice skating and a chance encounter introduces Marge and Homer to the sport of curling, and they wind up joining a team and becoming involved in the Olympic trials. Bob Costas has a cameo as himself.

Where to Watch
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Episode 13

The Color Yellow

Sun, Feb 21, 2010 30 mins

Lisa researches her ancestors for a school project and learns that her Southern forebears helped a slave escape to freedom. Voice of Virgil: Wren T. Brown.

Where to Watch
The Simpsons, Season 21 Episode 13 image

Episode 14

Postcards From the Wedge

Sun, Mar 14, 2010 30 mins

When Bart gets in trouble for not turning in homework, Homer and Marge use different parenting tacks, a situation that Bart quickly realizes he can exploit.

Where to Watch
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Episode 15

Stealing First Base

Sun, Mar 21, 2010 30 mins

Bart develops a crush on a girl (voice of Sarah Silverman) in his class. Meanwhile, Lisa's peers snub her for being an overachiever, but First Lady Michelle Obama (voice of Angela Bassett) comes to her defense.

Where to Watch
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Episode 16

The Greatest Story Ever D'ohed

Sun, Mar 28, 2010 30 mins

Flanders invites the Simpsons on his congregation's trip to Jerusalem, and despite a questionable attitude at the outset, Homer learns a lot. Sacha Baron Cohen has a voice cameo as an idiosyncratic tour guide.

Where to Watch
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Episode 17

American History X-cellent

Sun, Apr 11, 2010 30 mins

Mr. Burns goes to jail and Smithers takes over at the power plant, but the employees take advantage of him.

Where to Watch
The Simpsons, Season 21 Episode 17 image

Episode 18

Chief of Hearts

Sun, Apr 18, 2010 30 mins

Homer is assigned to court-ordered community service, and he befriends his supervisor, Chief Wiggum, while performing it. Unfortunately, Homer jeopardises the friendship by not answering the bell when Wiggum is injured and needs him most. Meanwhile, Bart falls under the spell of the Japanese game Battle Ball.

Where to Watch
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Episode 19

The Squirt and the Whale

Sun, Apr 25, 2010 30 mins

An ecology-themed episode finds the Simpsons using a wind turbine in their backyard as a cheap, clean energy source, and Homer and Lisa trying to rescue a blue whale that's been beached by a storm.

Where to Watch
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Episode 20

To Surveil With Love

Sun, May 2, 2010 30 mins

Springfield is plunged into an Orwellian nightmare when surveillance cameras are installed everywhere to beef up security after a supposed terrorist attack. Meanwhile, Lisa faces hair-colour prejudice.

Where to Watch
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Episode 21

Moe Letter Blues

Sun, May 9, 2010 30 mins

Moe writes a letter to Homer, Apu and Rev Lovejoy and threatens to run off with one of their wives. In flashbacks, the three guys remember intimate moments between Moe and their ladies.

Where to Watch
The Simpsons, Season 21 Episode 21 image

Episode 22

The Bob Next Door

Sun, May 16, 2010 30 mins

Bart believes his new neighbour Walt (voice of Kelsey Grammer) is Sideshow Bob in disguise, returning for revenge.

Where to Watch
The Simpsons, Season 21 Episode 22 image

Episode 23

Judge Me Tender

Sun, May 23, 2010 30 mins

In the 21st-season finale, Moe may be destined to join the panel of "American Idol" judges after he discovers a heretofore unknown skill as an arbiter. Meanwhile, Homer's loitering around the house wears on Marge. Simon Cowell, Ellen DeGeneres, Kara DioGuardi and Randy Jackson have cameos.

Where to Watch
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