After learning that he is suffering from multiple illnesses and has only a few weeks to live, Mr. Burns becomes distraught by the town’s less-than-sensitive reaction to his announcement.

Following an unexpected turn of events, Bart finds Mr. Burns weak and vulnerable in the wilderness and secretly takes him into the Simpsons’ home.

But when Homer and Marge learn about their new houseguest, they decide it’s payback time, and Lisa, determined to stand up for Mr. Burns, learns that old habits die hard.

Bart helps nurse an injured pigeon back to health. After Santa's Little Helper eats the bird, Bart has a hard time coping with the loss. Worried that Bart needs some help getting over the loss, Marge and Homer take him to a therapy session with Dr. Thurston, who advises that the only cure for Bart’s blues is to give away the family dog, but when the Simpsons visit the pup’s new home, a shock causes them to rethink their decision.

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.

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 (Kristen Wiig).

When Homer insists Bart must earn the new dirt bike he wants, Bart comes up with a scheme; James Lipton interviews a TV cast.

Moe gets Homer to be his wingman, but becomes distraught when the women are drawn to Homer as well. Meanwhile, Marge discovers some gray hairs and tries a new more mature hair style to go along with it, much to Bart's dismay.

Bart and Homer make a film based on Bart's comic book character Angry Dad. The cartoon becomes a critical favorite and begins to win a number of awards, but Bart becomes upset when Homer takes all of the credit during acceptance speeches.

Lisa's school project leads to the discovery of a new drug that makes the elderly less cranky and more tolerable.

The town is abuzz when Cheech and Chong announce a Springfield stop on their much-anticipated reunion tour. But when Cheech and Chong take the stage in front of their loyal fans, the jokes were just not the same for Chong, so Homer steps in and delivers all the punchlines by heart. Impressed, Cheech invites Homer to go on tour with him as new duo “Cheech and Chunk” while Chong forms a more progressive comedic team, “Teach and Chong,” with Principal Skinner.

While Homer is on tour, Marge attempts to help the neighborhood cat lady and change her hoarder ways, but turns into a hoarder herself in the process, and Homer realizes that life on the road is not all high times and slapstick humor

The tables are turned for Homer and Bart after a therapist cures Homer of his violent tendencies toward the boy.

The family is greeted by folk singer Ewell Freestone when they visit a peach farm, but when Marge goes overboard with peach-inspired dishes, Lisa and Bart try to get rid of the unwanted fruit. Later, Lisa becomes a magician’s apprentice to the legendary Great Raymondo who helps her develop her craft, but a schoolgirl crush clouds her judgment when she is coaxed into revealing the Great Raymondo’s most famous magic trick to his phony archnemesis. But when the rival magician’s act takes a risky turn, the Great Raymondo has one last trick up his sleeve and stages showdown with Ricky Jay, Penn & Teller and David Copperfield, showing them why he is the master of the craft.

Fat Tony (voice of Joe Mantegna) woos Marge's sister Selma, and they marry. Marge worries that Selma is choosing her new lifestyle over family after the whirlwind romance, but Tony invites Homer and Marge to join them on a getaway at the Jersey shore. Meanwhile, Bart develops a gift for finding truffles, much to Lisa's delight.

After Homer discovers a genius talent for styling hair and opens his own salon, he becomes Springfield’s most in-demand hair stylist. But having to listen to women’s problems and gossip all day long leads Homer to believe his gift may actually be a curse. Meanwhile, when Milhouse decides to live each day to the fullest, he comes out of his shell and professes his love for Lisa, only to have his heart broken. Milhouse then catches the eye of popular fifth-grader Taffy, causing Lisa to make a bold move.

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.

Feeling guilty for getting Mrs. Krabappel suspended after one of his school pranks, Bart helps her escape detention, and Ned Flanders winds up saving her life in the process.

When Edna and Ned start dating, he is surprised to learn she's been with many of Springfield's men, including Homer and Aerosmith drummer Joey Kramer.

Homer befriends Wayne, a reserved security guard recently hired by the nuclear power plant. Plagued by violent flashbacks from his past as a CIA agent, he must overcome his tortured nightmares to save Homer from a Ukranian terrorist. Meanwhile, Marge fantasizes about being a contestant on "Top Chef" hosted by Tom Colicchio, and the future of Springfield's hottest "it" couple Nedna, Edna Krabappel and Ned Flanders, will be revealed after months of online fan voting and speculation.

Superintendent Chalmers reveals his hero as former President Theodore Roosevelt, who makes an appearance in the episode with the use of archival recordings.

In this futuristic holiday episode, Bart is a deadbeat dad living in Springfield Elementary (which is now an apartment complex instead of a school) with Principal Skinner as his landlord. Meanwhile, a pregnant Maggie goes into labor during a family dinner.

Simpsons' twentysecond Halloween show.

The Diving Bell and the Butterball:

Homer is bitten by a radioactive spider.

Dial "D" for Diddly:

Ned becomes a serial killer.

In the Na'Vi:

Bart and Milhouse in an Avatar spoof.

Marge takes Bart and Lisa on a weekend excursion, and when an unexpected restaurant detour awakens their taste buds, fellow foodies Amuse Bruce and Fois Garth (guest voices Tim Heidecker and Eric Wareheim) inspire them to start their own food blog, “The Three Mouthketeers.”

Bart’s science fair project, a mechanical baby seal, outshines Lisa’s brainy asteroid model and quickly becomes a popular pet among the retirement home patrons. Meanwhile, Homer’s new and eager assistant Roz, steals Homer’s job, forcing him to team up with Flanders to reveal her true colors and evil past.

Lisa becomes disheartened when she learns the shocking truth behind the “tween lit” industry and her beloved fantasy novel characters, but Homer decides to cash in on the craze and forms a team to group-write the next “tween lit” hit, with the king of fantasy, Neil Gaiman, lending his expertise to the effort.