Season 21

2009

Episode 1 Homer the Whopper September 27, 2009, 22 min 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…
Episode 2 Bart Gets a ‘Z’ October 4, 2009, 23 min The fourth grade students of Springfield Elementary School decide to spike Ms. Krabappel's coffee in order to teach her a lesson after she takes away their cell phones. She is…
Episode 3 The Great Wife Hope October 11, 2009, 22 min The men and boys in Springfield become obsessed with Ultimate Punch Kick and Choke Championships, a violent sport where fighters inflict severe pain on each other. When Marge and her…
Episode 4 Treehouse of Horror XX October 18, 2009, 23 min Dial "M" for Murder or Press "#" to Return to Main Menu- Lisa is forced into a Hitchcockian murder scheme by Bart. Don't Have a Cow, Mankind- Springfield is once…
Episode 5 The Devil Wears Nada November 15, 2009, 23 min Marge and a group called the "Charity Chicks" pose for a calendar in hopes of raising money for charity, but Marge becomes the talk of the town thanks to her…
Episode 6 Pranks and Greens November 22, 2009, 22 min Principal Skinner is getting fed up with Bart's pranks, so he informs Bart that he is not the best prankster after all. A former student named Andy Hamilton is hailed…
Episode 7 Rednecks and Broomsticks November 29, 2009, 22 min Lisa befriends three teenaged Wiccans after getting lost in the woods during a game of hide-and-seek, and must clear her new friends' names when they are accused of cursing the…
Episode 8 Oh Brother, Where Bart Thou? December 13, 2009, 23 min One snowy day in Springfield, Lisa informs Bart that she and Maggie share a bond that Bart will never understand because he doesn't have a brother, so Bart asks Homer…
Episode 9 Thursdays with Abie January 3, 2010, 23 min Grampa is sitting on a bench waiting for his family when a thoughtful-looking man named Marshall Goldman approaches him and asks to hear about his life. Grampa tells Goldman about…
Episode 10 Once Upon a Time in Springfield January 10, 2010, 22 min Krusty grudgingly adds a pretty, singing cohost named Princess Penelope to his show in order to attract more female viewers. Girls love her, and ratings improve, but Bart and Milhouse…
Episode 11 Million Dollar Maybe January 31, 2010, 23 min Homer blows off Marge to buy a lottery ticket and winds up winning the million-dollar jackpot. Fearing how Marge will react if she finds out the reason Homer missed their…
Episode 12 Boy Meets Curl February 14, 2010, 23 min Homer takes Marge out for a romantic evening of ice skating and hand-holding, but upon entering the rink, they encounter a curling team practising. Marge and Homer take to the…
Episode 13 The Color Yellow February 21, 2010, 23 min When Miss Hoover asks her students to research their family history, Lisa is horrified to discover that most of her ancestors were bad people – a motley crew of horse…
Episode 14 Postcards from the Wedge March 14, 2010, 23 min When Bart fails to turn in his homework, Mrs. Krabappel sends a letter home about Bart's behaviour. Despite Bart's best efforts to intercept it, Homer reads the letter, and he…
Episode 15 Stealing First Base March 21, 2010, 22 min Principal Skinner announces that Mrs. Krabappel was called out of town and budget cuts dictate that, until she returns, the school's two fourth grade classes will merge. Bart reluctantly shares…
Episode 16 The Greatest Story Ever D’ohed March 28, 2010, 23 min The Simpsons family vacation in Israel with Ned Flanders, but Homer does not appreciate any of the culture—until an Israeli tour guide named Jakob shows him around and, in a…
Episode 17 American History X-cellent April 11, 2010, 22 min When the police are called to diffuse a rowdy crowd at Mr. Burns' estate, one of the officers recognizes priceless stolen paintings on the walls, and the maniacal billionaire is…
Episode 18 Chief of Hearts April 18, 2010, 22 min Homer is completing his court-ordered community service when he befriends his supervisor, Chief Wiggum, by offering him one of his sandwiches. Touched by the act of kindness, Wiggum assigns the…
Episode 19 The Squirt and the Whale April 25, 2010, 22 min The Simpsons decide to embrace a cheaper, alternate source of energy by erecting a wind turbine in their backyard. But when Homer realizes some of the power is being directed…
Episode 20 To Surveil with Love May 2, 2010, 22 min A bomb squad mistakenly blows up Homer's unattended gym bag, releasing radiation into the city and authorities react by suspending civil liberties. Wiggum and his men install surveillance cameras around…
Episode 21 Moe Letter Blues May 9, 2010, 22 min As Mother's Day approaches, Moe narrates an episode in which he writes a letter to Homer, Apu and Reverend Lovejoy, who are vacationing with their children, and threatens to run…
Episode 22 The Bob Next Door May 16, 2010, 22 min Bart becomes convinced that his new neighbor, Walt, is his archenemy, Sideshow Bob, disguised and back for revenge. But when Marge tries to convince Bart otherwise by taking him to…
Episode 23 Judge Me Tender May 23, 2010, 22 min When Moe discovers a hidden talent for judging contests, he is approached by a television agent to join the AMERICAN IDOL judges' panel. Moe flies to Los Angeles where he…