Send in the Clones – Homer gets a magic hammock that “copies” himself and makes duplicate Homers. Things get out of hand when the army of Homer clones begins wreaking havoc in Springfield.
The Fright to Creep and Scare Harms – Lisa fights to have guns banned in Springfield when she sees how many tombstones in the cemeteries belong to shooting victims. Once Springfield complies, however, the town is rendered defenseless against the swarming hordes of gun-toting zombies who come back from the dead to seek revenge.
3)The Island of Dr. Hibbert – The Simpsons head for an island vacation hosted by Dr. Hibbert. Only once they arrive do they realize that he’s gone mad and has taken to morphing his visitors (various Springfield residents) into manimals.
When Homer is secretly videotaped complaining about his family during an episode of “Taxicab Conversations,” they send him off to a rock and roll fantasy camp so that he can regroup and try to live his dream.
Once there, he lives the life of a rock star, as taught to him by the likes of Mick Jagger, Elvis Costello, Keith Richards, Brian Setzer, Tom Petty and Lenny Kravitz. When the camp ends after a week, Homer doesn’t want to leave. He just wants to rock.
Mick Jagger then invites Homer to come on stage for a benefit concert they’re giving. Once on stage, Homer realizes that he’s not a star, but just the groups Roadie. Homer decides to then wail on a guitar and introduce the band with a musical number of his own. Mick, Elvis, Keith, Tom, Lenny and Brian try to run Homer off stage and a riot breaks out at the venue.
In the end, the rockers apologize to Homer for their behavior and ask him to come on stage for another benefit concert. Homer declines however, saying that he’s already the rock star of the Simpson family, so there’s no need to go on stage any longer.
After taking an aptitude test, Bart is held back a grade, and Lisa is skipped ahead, landing them both in third grade at the same time, and in the same class. Tension develops between them, but they are forced to work together when they become lost on a school field trip.
Marge mistakenly thinks Homer is eyeing other women. In an effort to uplift her appeal, she decides to get plastic surgery to look younger. But the surgery goes awry when Marge receives breast implants that were meant for a younger patient. Meanwhile, Bart and Milhouse catch an episode of Batman where Batman and Robin battle Clown Man -- who happens to look a lot like Krusty. Guest stars include Adam West, Burt Ward, Susan Yezzi, Jan Hooks, and the Baha Men.
Walking through the plant, a section of pipe falls on Homer and damages his brain. Afraid he might sue, Burns offers him the company's skybox tickets for a hockey game. The Simpsons enjoy the luxuries of high sports life, including sushi, hot tubs and massages. Annoyed with the classism, Lisa heads down to ice level to watch the game. She advises a Russian player on how to beat the goalie. He scores and gives her his stick in thanks.
At home, Homer nails Lisa's stick above her bed. During the night, an army of termites pours out of the stick. In the morning, the family finds their house falling apart. An exterminator fumigates the house and tells the Simpsons the house is uninhabitable for six months. Homer decides to move everybody into a hotel. Finding every room in town sold out, the family moves in with Lenny. But he shares a wall with a jai alai court, so they move in with Comic Book Guy. But he freaks them out, so they move into a house on a reality program that simulates life in 1895.
The family has a rough time adjusting to the lack of modern day amenities, but Homer says they have to stick it out because they're on TV. They begin to bond and enjoy their new, austere lives, which TV audiences find boring. The network execs decide a guest star is necessary to revive the show, so they send Squiggy from Laverne and Shirley into the house. That doesn't do it, so the execs pick up the house with a crane attached to a helicopter and dump it into a fast moving river. Eventually, the house goes over a waterfall and washes up on shore. The Simpsons escape just before the house collapses.
After cancelling an apple picking trip due to "mother issues", Principal Skinner upsets Ms. Krabappel. When Bart discovers this, he gets Edna nominated for Teacher of the Year and everyone travels to Orlando, Florida for the ceremony. Skinner decides to tag along, and musters up the courage to propose to Edna. Little Richard guest stars as himself.
Lisa is upset when she realizes that her own father doesn’t even know her very well. It’s even more evident when he fails to get her the birthday present she wanted. In an effort to get closer to her, Homer hires a detective to spy on Lisa and find out her likes/dislikes.
Lisa is impressed with Homer’s new detailed knowledge of her, but when Homer refuses to pay the detective’s bill, the guy tries to frame Lisa for a crime.
When the police arrive at the house, Lisa and Homer have to go on the run together, and Homer confesses to spying on his daughter. Lisa forgives him because she knows he did it out of love.
The police trace Homer and Lisa to a circus where Lisa uncovers clues to exonerate her.
When Marge gets mugged, she becomes agoraphobic and can’t leave the safety of her home. She holes up in the basement and starts working out on a weight set.
She gets stronger and stronger, enough so that she’s able to re-enter the world and beat up the man who robbed her, but she takes it too far and becomes a steroid-crazed bully as she beefs up for the “Iron Maiden Fitness Pageant."
When Homer appeals to her to calm down, she finally relents and goes back to being the old Marge. This was the 300th episode of The Simpsons.
When Flanders wins a half-time money shot during a WNBA game, Homer decides his neighbor's secret to success is praying. Homer starts praying to get his way with everything...and it works. He even prays himself into an injury lawsuit against the Church and is awarded with the deed to the property. Homer promptly moves the family in, while Helen and the Reverend have been relocated to the Flanders and reduced to preaching at the Bowl-A-Rama. It can only take a miracle to make Homer see the error of his ways. Guest stars Lisa Leslie (WNBA player) as herself.
When Bart learns that Homer has lost his earnings from a TV commercial he appeared in as a baby, Bart takes Homer to court and is granted emancipation from his parents.
Now a legal adult, Bart moves out of the house and into a downtown apartment, where he befriends Tony Hawk and his gang of skating buddies who live upstairs.
Homer appeals to Tony Hawk to let him win in a skate-off to impress Bart and lure him back home, but Bart finally lets Homer know that he was just looking for Homer to care about his feelings. Homer finally gets it, and the father and son reunite. Despite what FOX said in the past, this was not the series' 300th episode.
While Homer falls in love with the new limited-time Krusty Ribwich, Lisa enjoys the sudden popularity of being a spelling champ -- and soon becomes the state rep for the Spell-lympics. When the Ribwich is discontinued locally, Homer joins up with the Ribheads and follows the mystery meat sandwich tour around the country. At the finals, George Plimpton tells Lisa to take a dive (and get a free college scholarship) so that a cuter kid will win and ensure the future of competitive spelling. Guest stars George Plimpton.
When a famous and sultry movie star swoops into Springfield, every man’s jaw drops. It turns out that she has eyes for none other than Ned Flanders, who has been lonely ever since his wife passed on.
Flanders is the envy of Springfield as they go arm and arm together around town, and Homer is dying to know if they ever did the “deed.”
The movie star eventually tires of Flanders and leaves to return to LA, but Flanders still refuses to tell Homer what he wants to know. Naturally, Homer goes nuts.
When The Simpsons become fed up with the new flight patterns at the Springfield airport which are sending loud planes over their house all the time, they take a stand and demand action from their congressman.
The politician promptly dies as he’s hearing their proposal, and the family goes about helping Krusty win his now-vacant House seat and take up their cause in Washington.
Once Krusty is installed in power, he wreaks havoc on the U.S. political system – but not without getting a Springfield plane rerouting bill passed.
After being rejected by a sleepy Marge on Valentine's Night, Homer enrolls in Stark Richdale's extension class Successmanship 101, which gives him the "Megatronics" tools needed to take over the SNPP - by replacing the plant's true owner, a canary, with himself, and firing Mr. Burns.
Snobby English documentary filmmaker Declan Desmond convinces Lisa she must choose a career path immediately, prompting her entry into astronomy. But when her successful petition to reduce outdoor light pollution gives criminals increased cover of darkness, an angered citizenry sees to it that Springfield's outdoor lighting becomes brighter than ever, leading to perpetual daylight. Meanwhile, after being humiliated at the hands of Nelson and company, Bart tries to salvage his cool by stealing the golden hood ornament from Fat Tony's '30s Stutz Bearcat-style gangster car. Guest stars Eric Idle as Desmond and Joe Mantegna as Fat Tony.
Homer and Marge have a fight when Homer realizes Marge married him because she was pregnant with Bart. He decides to leave the house and tries moving in with Milhouse’s dad.
After not being able to sleep, he’s eventually taken in by Karl, his old assistant. It turns out that Karl has a flamboyant lifestyle which Homer gets a heavy dose of.
Homer tries to get back together with Marge, but he screws it up and goes out drinking – heavily. He ends up in the hospital where he and Marge reconcile. Homer realizes that Marge loves him and that’s all that matters. He moves back home.
While out Christmas caroling, the family finds out from a lawyer that the carol they are singing is copyrighted, leading Homer to write his own carol. But when Ned tries to help, Homer turns it into an anti-Flanders song. A passing David Byrne just happens to hear Homer play his song at Moe's, and he turns it into a hit record. When stardom becomes too much, the family spends a week at a dude ranch. Lisa initially objects, until she meets a young junior wrangler named Luke Stetson. Guest stars Jonathan Taylor Thomas, Andy Serkis, and David Byrne.
Santa's Little Helper is shunned as a coward after opting to devour a roast turkey rather than pull Homer from a fire. Getting his nose stuck in a can of Duff Beer afterward, however, proves to be somewhat of a spirit-booster when it propels him to the status of Spuds McDuff: the Duff Brewery's new mascot. But matters worsen when the the dog's new-found fame (and net worth) cause his original race track owner to come forth and reclaim his "property" -- leaving it up to the Simpsons to get their dog back by proving Santa's Little Helper is a coward unfit to hawk Duff beer. Guest stars Stacy Keach as Howard K. Duff VII.
Homer loses his driver’s license and Marge is forced to drive him around town. She gets increasingly stressed by having to chauffeur everyone, and she grows angrier and aggressive.
Meanwhile, Homer actually starts to enjoy walking – but Marge clips him with the car while he’s crossing the street. Homer and Marge go to therapy together, and the family tries to cheer Marge up by paying attention to her needs and not making her tend to them at all.
When Bart and Milhouse become bored, they head over to Flanders’ house and wreak havoc.
When they’re caught in the act, Homer and Marge decide to enroll Bart in the “Pre-Teen Braves,” a club to keep kids off the streets. Homer becomes the “tribal chief,” leading the kids in such traditional Native American activities as eating Buffalo wings and watching football.
Milhouse is separately enrolled in the “Cavalry Kids,” and the two groups feud over which group can do more for charity. The fight escalates as the groups engage in a heated battle to see who can sell more candy.
Moe is especially lonely and contemplates suicide. While standing on the side of bridge, about to jump, he accidentally catches Maggie – who was thrown from the Simpsons’ car in a traffic accident. The little baby immediately takes a liking to him.
The Simpsons are pleased, and they offer Moe the opportunity to babysit their youngest. Moe has a chance to explore his softer side with Maggie, but once Homer and Marge get sick of his being around all the time, they forbid Moe from babysitting anymore. When Moe then saves the baby a second time, Homer promises Moe that he’ll bring Maggie by the bar more often.