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A visit by a Springfield Elementary alum-turned-Ivy-League student pushes Lisa to question her own go-getter attitude and reevaluate the scope of her extracurricular activities. Convinced that there is no such thing as having too many clubs or activities listed on her resume, Lisa jumps at the opportunity to coach Bart's little league team. Despite having little understanding of baseball, Lisa coaches the team to a record winning streak by putting her book smarts in statistics and probability into play. But when Bart questions Lisa's coaching tactics and confronts her for taking the fun out of baseball, Lisa benches him from the championship game. Hoping to lift his spirits, Marge spends the day with Bart at an amusement park where MLB manager and former catcher Mike Scioscia (guest-voicing as himself) gives Bart sound advice and reminds him of his genuine love of the sport. Meanwhile, with one last chance to win the game, Lisa makes an unexpected call and learns that there is more to sports than winning iwatchsimpsons.com, the ultimate community to watch The Simpsons online.

After the fourth graders and fifth graders engage in a heated dodgeball battle, Bart discovers that one of the fifth graders has the same mysterious scar on his hand. Puzzled by the matching blemishes, Bart tries to understand why and how he got it, leading Marge to explain that seven years ago, she and her girlfriends formed the "The Cool Moms," a tight-knit group of moms who set playdates for their young boys. Inspired to reconnect with the women, Marge's social life soon becomes recharged, but when Bart's playdates stop being fun, he attempts to break up the club, and Marge finally remembers why she left the group in the first place.

Homer spends New Year's Eve in the Springfield Penitentiary after getting caught bribing an official. An FBI investigator (guest voice Hamm) offers to reduce his jail time if Homer agrees to go undercover as an informant to investigate Fat Tony (guest voice Mantegna). When Homer forges a special bond with Fat Tony and his family, he becomes conflicted between his obligation to the government and his loyalty to his new family. After an unexpected turn of events, Fat Tony's cousin Fit Tony (Mantegna) seeks to settle a score with Homer, but winds up teaching him an important lesson.

Beware of Ouija boards, vampires and unexpected guests in the 21st annual installment of the "Treehouse of Horror." In "War and Pieces," the first of three spine-tingling tales, Marge, worried about the effects of excessively violent video games, encourages Bart and Milhouse to give wholesome, classic board games a shot. The best friends discover that board games aren't boring after all when they find themselves playing a real-life game in which they must beat all the challenges before they are allowed to return to home. The supernatural spells continue in "Tweenlight," when Lisa becomes smitten with a mysterious new student, Edmund (guest voice Radcliffe), who also happens to be a vampire. When a romance blossoms, the young lovers run away to Dracula-la Land, leaving Homer to come to Lisa's rescue. In the final frightening fable, "Master and Cadaver," Homer and Marge set sail on a romantic second honeymoon, but are interrupted when they rescue Roger (guest voice Laurie), a castaway who escaped an attempted poisoning on his ship. Convinced that Roger is sabotaging their getaway and plotting a murder of his own, Homer and Marge take matters into their own hands. Online The Simpsons episodes can be found at iwatchsimpsons.com for free.

When Smithers offers to help transform Moe's dingy pub into a more refined and trendy lounge, the revamped "Mo's" quickly becomes Springfield's local gay hangout. With Smithers' friends and colleagues infusing new life into "Mo's," business starts to boom, but Moe inadvertently leads his new bar patrons to believe that he, too, is gay. Afraid that telling the truth would hurt his newly flourishing business, Moe's new friends teach him a lesson in acceptance. Meanwhile, Principal Skinner becomes smitten with the new free-spirited music teacher, Ms. Juniper (guest voice Wiig), who inspires the by-the-book principal to take chances. When Skinner finds out that Ms. Juniper's daughter, Melody (guest voice Hannigan), has a crush on Bart, he uses Bart to get close to Ms. Juniper Watch this episode on watch The Simpsons online for free.

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.

Discovering that Marge was once a stellar A+ student whose grades plummeted after being distracted, Lisa fears that she will end up just like her mom unless she pledges to focus solely on academics in an encore episode. When Marge makes a secret deal allowing Lisa to attend her dream school, Lisa learns a lesson in family and altruism. Meanwhile, Bart puts Nelson in his place and unintentionally claims the title of "School Bully."

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 tours the Fox lot and receives some sage career advice. Meanwhile, Homer drives Marge crazy when he begins hanging around the house

After Springfield Elementary is given the dubious distinction as The Worst School in America, the Simpsons move to Waverly Hills. As Bart adjusts to the new school, he begins a rumor that Lisa is friends with Alaska Nebraska, a Hanna Montana-esque pop singer. Meanwhile, Homer rents an apartment for himself and poses as a bachelor.

Bart befriends an elderly cowboy who was once a Big Screen Legend, a la John Wayne. The cowboy becomes Bart’s new idol, and soon all of Springfield’s children are renewing their interest in the Old West. Of course Homer is jealous of Bart’s new hero and tries repeatedly and unsuccessfully to win Bart back. Meanwhile, Bart and Lisa help the cowboy regain his fame by booking him on Krusty’s show. Unfortunately, the cowboy is a drunkard and when a bad bout of stage fright kicks in, he turns to the ol drink. He’s subsequently humiliated when he’s forced to admit he’s an alcoholic. Down, but not out, the cowboy redeems himself by restoring order at the scene of a bank robbery and lassoing the robbers with his classic lasso trickery.

Homer and his buddies start a riot after the Springfield Isotopes win the league championship. Thinking the destruction is the fault of the town's youth, the authorities impose a curfew for everyone under a certain age. The children of Springfield rebel by starting a pirate radio station and broadcasting a show called We Know All Your Secrets, in which their parents' most private peccadilloes are revealed. When the adults realize the kids are behind the broadcasts, the two groups confront one another in song and dance. Eventually, the senior citizens arrive and insitute another curfew that keeps the grown-ups inside, too.

Marge pressures Homer into buying life insurance after he suffers a garage door to the throat accident while performing a little Sunday cleaning. When she learns that Homer is not insurable, Marge takes matters into her own hands by implementing across the board cost cutting in the household. Moe, Lenny and Carl convince Homer that all financial decisions should be made jointly which drives Homer to purchase a RV as an act of defiance. Homer’s frivolous purchase infuriates Marge causing the parents to divide and fight for their children’s love as Marge remains in the house and Homer lives in the RV parked in the backyard. While driving through Springfield with the kids, Homer befriends a convoy of fellow RV enthusiasts and invites them to dock in his backyard. Marge retaliates by shutting off the utility hook-ups resulting in a huge argument between the couple. In an effort to save their parent’s marriage, Bart and Lisa steal the RV and head to the dealer for a refund. Homer and Marge decide to work through their differences to track down the children just as the kids lose control of the RV and crash onto a departing Turkish freighter. Marge’s penny pinching comes in handy when she is able to use surplus cases of soup stored in the trunk to persuade the freighter to turn around and reunite the family. Watch this episode on watch The Simpsons online for free.

In this year's tricky triptych of terror, Bart presents three Halloween treats based on paintings in the Fright Gallery. In the first story, Homer sells his soul to the devil (played by Ned Flanders) for a doughnut. When the devil wants to uphold Homer's side of the bargain, it's up to Marge and Lisa to argue why Homer's soul shouldn't be sucked into hell for all eternity. In the second installment, Bart has a nightmare about the school bus crashing that might just be coming true the next day during his commute. Bart spies a goblin on the side of the bus that could cause a crash, but no one believes him until it may be too late. And finally, Mr. Burns invites the Simpson family over to his castle for dinner where he bites Bart, turning him into a vampire. As Bart and his newly minted vampire friends wreak havoc, Lisa enlists Homer to kill Mr. Burns, the head vampire. When Homer drives a stake through Burns' heart (after some near misses and some outright bad aim), Lisa realizes that Burns wasn't the head vampire and that there's still the mother of all bloodsuckers to dispatch. Free The Simpsons episodes at iwatchsimpsons.com allows you to watch The Simpsons online for free.

In an incredibly revealing episode, Homer and Marge learn to spice up their love life by snuggling in very public places. After conquering a nearby barn and experimenting with at Sir Putts-a-Lot miniature golf course, they find themselves trapped in public without their clothes. Trying to get back home, the two sneak and skulk about Springfield, nearly being caught fully naked at every turn. Homer accidentally moons an entire church congregation and both he and Marge wind up in a crowded football field where they are exposed to thousands of cheering people.

A particularly boring sermon by Reverend Lovejoy sends each member of the Simpson family into his or her own biblical fantasy. Marge imagines herself and Homer as Adam and Eve, living in harmony with the flora and fauna of the Garden of Eden until Homer stupidly eats from the Tree of Knowledge. Lisa dreams of herself and the other kids of Springfield Elementary as the Israelites in ancient Egypt. Principal Skinner is Pharaoh and it's up to a nervous Milhouse to act as Moses and free his people from bondage. In Homer's dream, he is King Solomon, solving every dispute by cutting the contested object in half. When Lenny and Carl bring a pie to the King, he cuts it in half and eats both pieces. In Bart's action-packed fantasy, he is David, fighting Nelson as Goliath's son, Goliath II. When the Simpsons awake from their dreams, they discover that Revelation has come and it's time for God's final judgment. Only Lisa is allowed into Heaven, but Homer drags her down into Hell with the rest of the family.

When Homer brings the family out for a nice dinner and a show, a hypnotist inadvertently conjures up repressed memories from Homer’s past and causes him to scream uncontrollably. Realizing that he’s been traumatized by some horrific event in his past, Marge gives him a special Yaqui Indian tea to sharpen his memory. Homer recounts when he was 12 and went on a hiking expedition with Lenny, Carl and Moe. It turns out that while they were swimming in a quarry, Homer happened upon a corpse that fell out of a drainpipe. With the memory now out in the open, Homer is able to stop screaming, but the mystery of the corpse remains. The whole family goes to investigate and when they find the body again, they decide to follow the drainpipe up to its source. They arrive in Mr. Burns’ office, where Mr. Burns tells them that the corpse is from Smithers’ dad, Waylon Sr. Mr. Burns then shows them a movie about how Smithers’ dad died, which was from the constant contact with radiation. iwatchsimpsons.com, the ultimate community to watch The Simpsons online.