After another of Bart's pranks at school, Principal Skinner suggests he participate in a student exchange program. However, he is sent to France and forced to work all hours in a vineyard, with little chance of escape.
Mrs. Krabappel becomes fed up with Bart's lackadaisical approach to his studies. After he bluffs his way through a book report and fails a history exam, she gives him an ultimatum: shape up or repeat the fourth grade.
On Thanksgiving, Bart gets into a fight with the family and runs away from home, before sharing a turkey dinner with a group of homeless people at a soup kitchen, and learning the true meaning of the holiday in the process.
While skateboarding down the street, Bart is hit by a car driven by Mr. Burns. Homer turns down Mr. Burns' token offer of $100, and instead hires ambulance-chaser Lionel Hutz to bring an outrageous lawsuit against the millionaire.
After Grampa is hospitalized, he reveals that Homer has a half-brother, and the family soon discovers the brother, named Herb, owns a car company. However Herb's hiring of Homer to design a new car may be his undoing.
Homer must decide which is more important: completing counseling to save his marriage or skipping out to catch a legendary catfish. Meanwhile, at home, Bart and Lisa take advantage of Grampa's ignorance of the house rules.
The Simpson family receives a severed monkey's paw which can grant wishes, Bart gains magical powers which he uses to turn Homer into a Jack-in-the-box, and Mr. Burns uses Homer's brain to create a robot.
The results of a standardized test steer Bart in the direction of law and order at Springfield Elementary School. However, Lisa becomes so depressed by her results that she turns to juvenile delinquency.
The Simpsons wind up regretting paying for an expensive surgery for Santa's Little Helper. He then runs away from home, winds up in the animal shelter, and is adopted by Mr. Burns to become an attack dog.
Milhouse falls in love with Samantha, a new transfer student, and Bart becomes jealous of all the time they are spending together. Meanwhile, Homer orders a subliminal weight loss tape, but is given a vocabulary builder by mistake.
After blowing up in Homer's face, Marge is cast as the lead in a musical production with Ned Flanders as her love interest, but the more she plays the part, the madder she gets at Homer; Maggie attempts to retrieve her pacifier from the nanny.
Homer opens a snow plow business only to have his best friend Barney open a rival outfit, with commercials by Linda Ronstadt. Homer sends Barney into an avalanche, then feels guilty and saves his life.
Years of poor eating habits catch up with Homer when he suffers a massive heart attack. The family can't afford the triple bypass operation he needs from Dr. Hibbert, so they go to a discount quack named Nick Riviera.
After receiving a considerable donation of money, the people of Springfield decide what to spend it on. Enter Lyle Langley, a jocular salesman who gets Springfield hooked on a monorail system. After the monorail is up and running, and with Homer as the conductor, it's time for the maiden voyage. Little do the people know they have just boarded a one-way train to Hell.
Feeling sorry for Ralph, Lisa sends him a Valentine card. Having developed a crush on her, Ralph invites Lisa to go see the Krusty the Clown show. She accepts but after Krusty asks them if they are boyfriend and girlfriend, Lisa lets Ralph know that she just wants them to be friends.
Homer plays a series of (childish) practical jokes on Bart. To get even, Bart uses a paint mixer at a local hardware store to shake up a can of Homer's beer. Homer opens the can, resulting in a huge explosion that seriously injures the Simpsons patriarch.
A massive advertising blitz announces the arrival of something named "Gabbo". Eventually, Gabbo is revealed to be a Howdy Doody-esque dummy, whose sensational success causes Krusty the Clown's show to be canceled.
Brad Goodman, a self-help guru, comes to Springfield and identifies Bart as a role model for personal happiness because he is in touch with his inner child. Soon, the entire town begins to behave like him.
Bart takes Santa's little helper to school with him on inspection day and gets Skinner fired, Bart is pleased until Ned Flanders is made his replacement. Bart sets out to find Skinner and get him reinstated.
After playing truant from school, Bart witnesses the alleged assault of a waiter by Mayor Quimby's nephew, Freddy. However, if he comes forward, he will have to admit he skipped class, and face the consequences.
Homer gives all his attention to Bart because he is the star of his hockey team, which makes Lisa jealous. But when a rival team discovers that she is an excellent goalie, Bart suddenly has a rival for Homer's attention.
When Rev. Lovejoy disciplines Bart for a prank he pulled in church - he tricked the organist into playing Iron Butterfly's ""In-A-Gadda-Da-Vida" - he and co-conspirator Milhouse begin arguing over whether man really has a soul. Bart scoffs at the notion and agrees to "sell" his soul (a piece of paper with the words "Bart Simpson's Soul") to Milhouse for $5. A series of situations makes Bart realize maybe he really did sell his soul, prompting him to go all-out to get it back from Milhouse, who isn't willing to sell. Meanwhile, Moe attempts to open a family-style restaurant inside his tavern, with the gimmick that if he doesn't smile when servicing a customer, the meal is free. Moe's surly demeanor and the stress of running such a business alone conspire to do the establishment in.
Determined to avoid a work exercise program, Homer intentionally gains weight in order to qualify for disability and work from home. However, he soon realizes that being morbidly obese comes with its own problems.
After buying a Chanel suit at a bargain price, Marge finds herself invited to a country club by a former schoolmate. Taken in by the opulence of the place, she is soon overcome by a desperation to fit in.
Bart gets a check he wanted signed by Krusty back stamped. As Krusty was supposed to autograph it, Bart wants it taken back to sign, but inadvertently reveals Krusty as a tax fraud. Krusty's lifestyle is stripped down to that of an average citizen, his show ruined and most of his possessions sold in an auction. Bart is mad at himself, particularly after a sobbing Krusty commits suicide by piloting his plane, the I'm-Onna-Rolla-Gay, into a mountainside. Bart sees visions of Krusty everywhere, but are they illusions or real life?
Unable to get out of a mis-scheduled spring vacation, Principal Skinner makes up the holiday "Go to Work with Your Parents Day," giving Lisa the chance to spend time with Homer, and Bart the chance to work with Patty & Selma at the DMV. When Bart makes his own fake driver's license and Martin wins a bundle at the stock market, Bart rents a car, and takes Milhouse, Martin, and Nelson Muntz on a huge road trip.
Another member of Grampa Simpson's WWII platoon dies, leaving only him and Mr. Burns. Years earlier, the men stole a number of priceless masterpieces from Nazi Germany, and now Mr. Burns aims to ensure he is the one to inherit them.
After realizing how unpopular she is at school, a disillusioned Lisa sees the vacation to Ned Flanders' beach house that the family has planned as an opportunity to reinvent herself and make some friends.
At school, Nelson is caught with a cache of stolen items in his locker (including the "H" hood emblem from Supt. Chalmers' car) and is assigned to do chores with Groundskeeper Willie. Lisa is caught observing the goings-on and is assigned detention, where she develops a crush on Nelson. Lisa tries to reform Nelson, and it works for awhile. However, as the old saying goes, you can't teach a juvenile delinquent new tricks and it isn't long before Nelson is back to his old ways; he and his buddies had been caught throwing spoiled food at Skinner's house and tries to lie to Lisa about his participation in the whole thing, but ultimately lets slip the truth. Meanwhile, Homer obtains an autodialer and decides it will help him make easy money through his "Happy Dude" telemarketing scheme. Homer is eventually caught and made to use the autodialer to call back everyone he scammed in apology. Which he does ... then he asks for more money as part of a "Sorry Dude" scam.
Krusty becomes alarmed at the flagging ratings for "The Itchy & Scratchy Show" and demands it be corrected. The producers reason some new gimmicks are needed to inject fresh air and - after a focus group doesn't quite go as well as planned - decide to introduce a new character named Poochie, a rapping cartoon dog that is supposed to become friends with Itchy and Scratchy. Homer auditions to do Poochie's voice and wins the part. Poochie's first cartoon, "The Beagle Has Landed," premieres to great fanfare but is poorly received to say the least. The producers decide that, given his spectacular failure, Poochie will be killed off in the mutt's next cartoon. Homer learns about this and at his next recording session, gives a speech imploring everyone to give Poochie a chance. However, the effort is unsuccessful and Poochie's death - along with the correct lines dubbed in - is revealed in the next animated short. Also: A college-aged boy named Roy temporarily moves in with the Simpsons and - in a nod to clichéd characters being used as a gimmick to entice viewership of waning TV shows - does everything to get in the way. Eventually, Roy announces he's moving out and moving in with a pair of sexy ladies.
After Bart inadvertently becomes drunk at a St. Patrick's Day celebration, an old prohibition law banning drinking in Springfield is rediscovered and enforced. Desperate to keep alcohol in the city, Homer takes matters into his own hands.
Martin's birthday party is predictably dull until nearly all the guests become ill with food poisoning. The only ones not to get sick are Bart (who didn't want to eat the spoiled oysters), and Principal Skinner and Mrs. Krabappel, who fall in love with each other. Bart catches his principal and teacher kissing passionately, but they immediately find out and want to swear him to secrecy. They make him his gofer, making his life miserable at school and calling him at all hours of the night (all for the reward of Milhouse inheriting Bart's poor school record). Bart eventually loses his patience and exposes the Skinner-Krabappel relationship. After rumors - most of them grossly exaggerated - begin running wild through town, Supt. Chalmers threatens to fire both Principal Skinner and Mrs. Krabappel (since the relationship is forbidden per district policy) and does when Skinner refuses to call the relationship off. Eventually, Bart convinces Skinner to stand up for himself and his new girlfriend, and they decide to climb onto the roof and stay there until Chalmers reinstates them and accepts their relationship. The effort works, and Principal Skinner and Mrs. Krabappel are back at school.
After he fraudulently obtains a credit card, Bart buys a new dog named Laddie. When the items he purchased are repossessed, he lies that Santa's Little Helper is the dog he bought, and soon misses his pet.
After a massive soccer riot, Homer decides to invest in a home security system but can't afford the high price. He does the next best thing: He purchases a gun. This is despite Marge's stern opposition to having a gun. Homer plays with the gun like a toy and almost causes an accident at the dinner table. Marge warns Homer to get rid of the gun now; Homer agrees, but Bart finds the gun later in the refrigerator. Marge sees this, takes the gun away and tells Homer she is taking the kids and moving out. Homer eventually is kicked out of the local NRA chapter (for his careless use of the gun), and decides he needs to try to get Marge back. Eventually, he manages to foil Snake's armed robbery at the hotel where Marge is staying. Homer finally gets rid of the gun, but Marge decides to keep it for herself.
A damning report on childhood obesity in Springfield leads to the formation of a pee-wee football team. After belittling Ned Flanders, Homer ends up coaching the team, but his favoring of Bart makes him unpopular.
On Christmas Eve, Marge admonishes the family not to open presents until 7 a.m. the next morning. Bart finds a way around the directive and opens his gifts at 5 a.m. However, his prized gift - a remote-controlled fire truck - overheats and causes a fire that engulfs the tree and presents. The family investigates and Bart tells them that a burglar has struck. As a result of Kent Brockman's human interest story, the entire town donates gifts and cash to the Simpsons for their "misfortune." Eventually, Bart admits the truth, angering his clueless family but angering the town even more (when Brockman finds out the truth). The family is made into outcasts, and Marge's attempt to win the needed funds on "Jeopardy!" (to pay everybody back) fails miserably. Eventually, the townspeople loot the Simpsons' home ... save for a dust rag.
Homer completes a cross country delivery for a trucker who dies before completing it, and takes Bart along for the ride. Meanwhile, Marge and Lisa experience problems with a novelty doorbell they purchase.
When Mel Gibson becomes convinced that Homer is the only man with the guts to tell him the truth, he insists Homer accompany him to Hollywood to help fix his newest film project, a remake of Mr. Smith Goes to Washington.
The Simpsons get an abused horse and make him a contender in horse racing. Homer finds out a secret conspiracy about jockeys. Lisa tries to reach President Clinton when the results of a school band talent competition seem tainted.
When Homer tries to enter a phone-in competition, he becomes terribly stubborn and angry for Springfield introducing a new dialing code. In the Town Hall, after the Mayor's meeting about the change, Homer discovers that all the rich people live on one side of Springfield, with the old code, and Homer is left to try and manage with the new code. However, he protests, and ends up splitting Springfield into Old and New. Homer desperately tries different ways to tackle Old Springfield, but in doing so, he only makes them richer when they discover gold at the bottom of the river. Homer finally builds a large wall to separate the two sides, and remembers that The Who are planned to stage at Springfield for a concert. Will Homer manage to convince The Who to play on his side of town instead of the other's?
A hobo tells the Simpsons tall tales on a train ride to Delaware. In the first story, Homer is outcast from society as Paul Bunyan. Then, Lisa travels the country planting trees as Connie Appleseed. Finally, Bart and Nelson raft down the Mississippi as Tom Sawyer and Huck Finn.
Homer and Bart collaborate on a model rocket which destroys The First Church of Springfield. To raise money for repairs, the church sells advertising space, outraging Lisa - who becomes a Buddhist, with the help of guest star Richard Gere.
The family reads stories from a long overdue library book. First, Homer (Odysseus) struggles to find his way home after the Trojan War. Next, Lisa (Joan Of Arc) leads the French army after hearing the voice of God. Finally, Bart (Hamlet) avenges the murder of his father.
Homer clones himself with a magic hammock; Zombie cowboys come back from the dead after Springfield bans guns; The Simpsons family take a vacation on an island where Dr. Hibbert can turn people into animals.
After Lisa brings home the stick of a pro hockey player for yelling at him to shoot between the goalie's legs, the Simpsons' house is eaten by termites. To get a home, the family joins a reality show, where they must live like a family from 1895.
After Skinner once again has let Mrs. Krabappel down, Bart takes her to the cinema. To cheer her up, Bart nominates Krabappel for the 'teacher of the year' award. The nominations is accepted, and soon the Simpsons family and Mrs. Krabappel are going to the award ceremony in Orlando, Florida, where Skinner tries to get back Krabappel by asking her to marry him.
Homer turns to religion to help him get what he wants, and is soon awarded the church in an injury settlement. Homer then turns the church into his personal party pad, and Reverend Lovejoy leaves Springfield to wallow in its hedonism.
When Bart finds out Homer has used all the money Bart got for doing a commercial when he was a baby, he moves out of the house and into the same building as famous skateboarder, Tony Hawk, whose skateboarding tour Bart joins.
Lisa participates in the Spellympics, but Homer is busy traveling cross-country as Krusty Burger test-markets a new sandwich. Lisa is confident that she will win, until she learns that the contest is rigged against her.
Because of Homer losing his driver's license, Marge has to drive everyone everywhere, which is so stressful for her that she accidentally runs over Homer leading to the two seeing a marriage counselor.
First, Homer kills the Grim Reaper and takes his place in Reaper Madness. Then, Professor Frink's father is revived, only to kill people and steal their organs in Frinkenstein. Finally, Bart and Milhouse get a stop watch that can stop time in Stop the World, I Want To Goof Off.
A concert for babies ends in a riot, so the childless adults of Springfield gather to make the town less child-friendly. Of course Marge is against this proposition, so she forms her own group to prevent a yes on proposition 242.
Springfield builds an opera house, but since no-one attends it they convert it into a prison. Old and forgotten laws are used to fill the prison, and therefore Homer goes to jail for kicking a can five times in a row. In jail, Homer becomes a snitch
When Maggie gets chicken pox, Flanders tells Homer to create a pox party at the Simpson's house. But, Milhouse then finds Kirk and Luann kissing on Marge and Homer's bed. Milhouse is excited that his parents are back together, but kind of not when they're not paying any attention to him and tries to break them up with Bart. The results end up disastrous as it breaks up Homer and Marge too and then, when Bart ends up doing something, the only thing that matters to Homer and Marge is each other.
Springfield Elementary is divided into two separate schools (one for boys, one for girls) following Principal Skinner's demotion. Concerned that the boys are receiving a higher standard of education, Lisa disguises herself as a boy.
After seeing a museum exhibit on evolution, in which creation is labeled a myth, an outraged Ned Flanders teams with Reverend Lovejoy to blackmail Principal Skinner into requiring creationism to be taught in classrooms, eventually at the expense of any mention of evolution. Lisa becomes outraged herself, and forms a student organization to teach evolution, leading to a creationism vs. evolution trail, a la Inherit the Wind.
Marge begins her own carpentry business, but Homer becomes the face of the business because nobody will take a female carpenter seriously. And Bart uses Principal Skinner's peanut allergy to his advantage.
While Homer tries to get revenge on a driver who cut him off, his family warns him of the folly of revenge by telling stories based on "The Count of Monte Cristo," "Revenge of the Nerds," and "Batman."
When Bart performs a heroic act, Springfield grants him 1 wish. Barts asks for a driver's license, and he drives to a nearby town. There, he meets a teen (Natalie Portman) who thinks he is 16, and the two begin dating.
In this parody of [link=tt0059742], Lisa becomes a tutor for Cletus' seven children, until Krusty tries to exploit them as entertainers. Meanwhile, Bart becomes emotionally attached to his school-appointed psychiatrist.
Homer unwittingly drags the family into a cornfield maze after attempting to leave a boring Harvest fest that Marge brought them to. When everyone except Homer escapes, Santa's Little Helper rescues him and becomes the town hero. So the Simpsons enroll him in Police Dog Academy where he's teamed with Lou.
Homer falls in love with private planes after taking a flight to Chicago with Mr. Burns. So Marge hires Homer a "life manager" to help him think positively and find a job that will allow him to fly for a living.
Springfield becomes the site of the first presidential primary. The townspeople soon get sick of all of the presidential candidates sucking up to them, and decide to support their own write-in candidate: Ralph Wiggum.
The new prankster in Bart's fourth grade class actually turns out to be a mole brought in by Principal Skinner to infiltrate Bart's inner circle. Homer falls in love with his loaner car after Marge wrecks their old one.
One of Bart's pranks results in Martin's death, but Lisa doesn't want him to confess because she would be considered an accomplice. Marge hires a television crew to find out if Homer is cheating on his diet.
Marge has Lisa take up ballet, mainly to have Lisa live out her own childhood dreams. Lisa then succumbs to peer pressure from her ballet mates and takes up smoking. Meanwhile, Homer and Bart try to start their own beef jerky business.
Bart and his fellow underachievers are taken on a "field trip" to Capital City so that they can miss the standardized test, and Homer makes sure that nothing bad happens until their insurance goes back into effect.
Bart gets Milhouse to take the rap for a prank at school, and then blows him off when he falls for a cute 5th grade do-gooder, prompting Milhouse's wrath. Meanwhile, Lisa begins taking "happy pills" to improve her negative outlook.
Lisa becomes livid with Miss Hoover, and in a series of homages to classic Hitchcock sets out for deadly revenge. Next, Krusty's latest fast-food sandwich transforms news anchor Kent Brockman into an enraged zombie and twenty-eight days later, cannibal zombies have overrun Springfield. In the final frightening fable, Homer accidentally falls through a trapdoor in Moe's tavern and impales himself on the pipes of Moe's microbrewery. Moe serves the barflies a glass of delicious beer flavored with Homer's blood and Homer, now half-man, half-brewing apparatus, returns for vengeance.
Bart meets the boy responsible for the greatest prank in Springfield Elementary School history, and discovers that he's now a 19-year-old loser. Meanwhile, Marge is scolded for providing unhealthy snacks for Maggie's play group.
Homer can't tell Marge he won the lottery because he was supposed to be giving a wedding toast when he bought the ticket. But Bart soon finds out where he's hiding the money and begins to blackmail him.
Moe's gruff and abrasive personality makes him the perfect hyper-critical judge, and lands him a spot on American Idol. Meanwhile, Homer makes Marge uncomfortable when he starts spending more time at home with Moe's now closed.
A Satanic board game causes other popular board games to come to life, Homer and Marge rescue a possible killer and let him on their boat, and a parody of "Twilight" where Lisa falls for a young vampire.
When Lisa discovers that Marge was also a model student, she tries to find out where everything changed so that she doesn't repeat her mistakes. Meanwhile, a series of chance accidents cause Bart to replace Nelson as school bully.
It's beginning to look a lot like Christmas in Springfield, but while Marge gets in the holiday spirit, it's bah humbug for the rest of the family. Disappointed that she is alone spreading the holiday cheer, Marge sends a letter to Martha Clause to help her save the family Christmas. Martha comes to the rescue and transforms the house into the North Pole chalet Marge has always dreamed of, but when the family is noticeably absent from the perfectly trimmed holiday home, she realizes that it's Homer and the kids who make the holidays special. Meanwhile, the Simpsons get ready to sneak away for a tropical holiday vacation in Hawaii, but surprise visitors Mr. Burns and Moe's new friend, Katy Perry delay their getaway. Four special holiday tales will be spun.
With Smithers' help, Moe renovates his bar to cater to the "regular" gay crowd, but refuses to tell the clientèle that he's straight. Meanwhile, principal Skinner has a crush on the free-spirited new music teacher.
After visiting a seminar to help boost his confidence around women, Moe employs Homer as his wing man only to find Homer has more luck with the ladies than he does, meanwhile Marge finds her first gray hair.
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.
When Krabbapple gets suspended and put into detention after hurting Bart, Bart tries to break her out, but it ends that Flanders is the one that saves her life. But soon, Ned figures out that Edna has also dated other men such as Homer, Skinner Comic Book Guy and Aerosmith drummer Joey Kramer.
Homer takes a dangerous dive into an isolated canyon on Candy Peak, but when a crashing boulder traps his arm, he channels Aron Ralston to save himself. In "The Diving Bell and Butterball," the first of three hair-raising Halloween tales, a venomous spider bite leaves Homer paralyzed, but when Lisa discovers Homer's ability to communicate through natural gases, he is able to express his love for Marge. The killer spells continue in "Dial D for Diddly," when Ned Flanders, devout preacher by day, transforms into a cold-blooded vigilante by night. In the final terrifying tale, "In the Na'Vi," Bart and Milhouse are sent on a mission to obtain a sacred extract on a distant planet. They morph into the land's indigenous one-eyed avatars, but when Bart finds love and an eternal mate abroad, he is caught in planet warfare.
Krusty the Clown is stuck in a rut when the television network pulls his show from the air and his talent agency drops him as a client. But when the Simpsons introduce him to seasoned agent Annie, they are surprised to learn that Annie was Krusty's very first agent. Despite their rocky relationship, Annie is convinced to re-sign Krusty and craft his career comeback. But when Krusty's retro comedy show reboot is deemed a critical success, Krusty must decide to stay with his agent or side with the network executives.
It's the most wonderful time of the year, and the Simpsons flash forward thirty years and find themselves in a tech-savvy, futuristic Springfield. Bart and Lisa have children of their own and decide to spend the holidays as one big family at Homer and Marge's house. Lisa and Bart turn to Homer and Marge for parenting advice and begin to realize that the apple doesn't fall far from the tree.
Principal Skinner promises the students that the best-behaved can take a ride in a submarine. Bart believes his past indiscretions will be forgotten. Lisa tries to help Krusty by suggesting him to sell the foreign rights to his shows.
Mr. Burns' Christmas present to his employees, a pair of augmented reality glasses, places a strain on Homer and Marge's relationship. Meanwhile, Bart wrestles with giving a Valentine's Day card to Nelson.
When Abe and two of his friends move in with the Simpsons after the Springfield Retirement Castle closes, Homer begins to embrace their lifestyle. Meanwhile, Nelson initiates Bart into the bully group after coming to his defense.
Marge opens a sandwich franchise store after her sandwiches become a huge hit at Springfield Elementary. But running day-to-day at the store proves challenging, especially when the same franchise opens another location across the street.
Lisa makes a new friend at school - Harper, who happens to be super-rich, while Homer makes friends with Harper's dad and sets out to continue living the good life when Lisa decides to end the friendship.
When Homer loses his job due to Marge's social media post, he begins working as a dishwasher at a Greek restaurant. Meanwhile, Lisa creates an app that can predict the effect any post on social media will have.
Lisa tries to launch the career of a homeless Appalachian folk singer, but Bart warns her that she will just let her down. Meanwhile, Homer tries to rescue the cat, who is trapped in the walls of the house.
After Lisa overhears Marge say that she doesn't like Lisa's jazz music, Marge takes Lisa on a trip to Capitol City to regain her friendship. Meanwhile, Bart uses Maggie as his new partner in crime for his practical jokes.
While trying to overcome a fear of public speaking, Homer creates an improv comedy troupe. Meanwhile, Marge rebuilds Bart's treehouse, but gets no thanks from him. Homer later appears live to answer phoned in questions.
When all the fast food restaurants in Springfield become healthy, Homer turns to the last bastion of greasy food for comfort; Lisa must find a good news story when her school radio station is in jeopardy.
Bart ruins Lisa's perfect day out of jealousy and becomes haunted by the manifestation of his guilty conscious. Homer is revealed to be a master chess player which helps him bond with his competitive dad.
Angered by the extreme socially progressive changes at his old alma mater, Mr. Burns starts his own for-profit university and hires the completely unqualified Homer as a professor only to lose him to a mad scientist.
After a successful animal rights campaign, all dogs in Springfield are allowed to go where they want and do what they want. Pack mentality quickly kicks in and the dogs of Springfield assert their dominance by threatening the people.
Grampa finally hears what everyone is saying about him when he gets a hearing aid. Bart and Lisa break into the school to correct her astronomy test. They find Skinner there who opens up about his mother's betrayal which ruined his life.