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.

After Mrs. Krabappel confiscates her class’s cellphones, Bart spikes Krabappel’s coffee with liquor, which lands her in trouble with Principal Skinner.

The men and boys of Springfield become obsessed with Mixed Martial Arts, a violent sport where fighters inflict severe pain on one another. When Marge and her friends stage a protest, the show’s promoter embraces the controversy and challenges Marge to a match, promising to shut down the competition if she wins.

This year’s triple threat of Halloween hilarity sees Moe using Homer’s blood for beer, Bart and Lisa caught in a murder pact, and everyone in Springfield becoming zombies thanks to Krusty Burger’s latest sandwich.

Marge and a group called Philanthro-Chicks are attempting to raise money for charity, but in order to do it, they have no choice but pose for a calender. Marge is a bit reluctant to reveal any of her skin on the photos, but after the photographer gives her wine, her photos become the most popular topic of discussion in Springfield.

Principal Skinner tells about about, And Hamilton, a former student who was an even better prankster than he. Bart tracks down Andy, now 19 and still pulling pranks, and the two become quick friends.

After stumbling upon some teenage Wiccans, Lisa accepts an invitation to join their coven. Just before Lisa is inducted Chief Wiggum arrives and arrests the three teens on charges of witchcraft; Lisa becomes the chief witness in the trial. Meanwhile, Homer starts to hang out with his new pal Cletus after discovering the slack-jawed yokel makes moonshine...

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

Grampa bumps into a human interest columnist who becomes fascinated with Grampa's life and writes a series of columns about Grampa's adventures.

In the landmark 450th episode of The Simpsons, Krusty is approached by two network executives who want to bring on female co-star Princess Penelope to increase the show, 's female demographic. The onstage and behind-the-scenes rapport between Krusty and Princess Penelope grows, and before long, Krusty asks for his co-star, 's hand in marriage. Meanwhile, when Mr. Burns puts a stop to the free donuts at the plant to cut costs, Homer, Lenny and Carl decide to meet with a headhunter who specializes in nuclear workers and opens their eyes to opportunities free of draconian donut-cutting measures.

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 date, Homer keeps his newly inherited fortune a secret and spoils his family with , anonymous, gifts. When Bart finds out, he and Homer spend the money like it's going out of style, including buying front-row to tickets to see Coldplay in concert.

Homer takes Marge out for a romantic evening of ice skating and hand-holding, but upon entering the rink, they encounter a curling team practicing. Marge and Homer take to the ice and discover their love for the sport, and soon after, join the curling team and compete with them in the Olympic trials. Team Springfield claims the win and moves on to the 2010 Vancouver Games where Bob Costas covers the action. Meanwhile, sleazy vendors introduce Lisa to the world of collecting Olympic pins, and before long, Lisa is hopelessly addicted.

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 thieves and deadbeats. But while rummaging through the attic, Lisa happens upon a diary kept by her ancestor, Eliza Simpson. As Eliza's story unfolds, Lisa learns that her family was part of the Underground Railroad, a group that helped slaves escape to freedom. Eliza recounts liberating a slave named Virgil, but when Lisa presents her findings at school, some of her classmates refute it, leaving Lisa determined to exonerate her family's name.