In this full-length “Treehouse of Horror” Halloween episode, Homer and his teenaged friends are pursued by a killer clown (Krusty) in a spoof of Stephen King’s novel It (though, mostly, it's based on the 2017 movie version).
Plot[]
Not It[]
In Kingfield, the year 1990, a young Barney headed outside and start playing with a paper boat in the gutter during a rainstorm. While a paper boat was flowing on the shoulder, it went into the sewer. When Barney tries to get his paper boat back, the killer clown, named Krusto, has dragged him into the sewer and killed him. Some point later, Homer puts up a missing person poster into the fence. While Homer was on the way to place the posters with his bike, he got tripped over and attacked by the local bullies Super-Intense-Kid Chalmers, Seymour Skinner, and Dewey Largo. Homer spots Krusto hiding in the bushes, observing the bullies. He shouts to the killer clown, the bullies didn't see coming, which makes Homer escape down the hill, with the bullies are going after him. As they reach the bottom of the river, the group of kids, the Losers, which includes Marge Bouvier, Comic Book Guy, Carl Carlson, and Moe Szyslak, arrive to save Homer from the bullies attacking him. Marge throws and hits Chalmers' nose with a baseball which leads the bullies to run off.
The Losers take Homer to their clubhouse to share their stories that encounters Krusto. They were determined to stop his terror; the Losers then proceed to the Kingfield Clown Archive to investigate Krusto. Marge and Homer find out that Krusto has hosted numerous shows over the years without ever being funny, and he resurfaced every 27 years to target children. While Marge and Homer show a segment from Krusto's 1963 program "The Yuk-Yuk Hour with Krusto!", Krusto comes out of the television set and grabs attempts to kill Comic Book Guy. Marge is passing garden shears to Homer, and he then stabbed Krusto which getting bigger. Subsequently, Marge unplugged the television set, leading Krusto defeat temporarily. The gang geared up themselves to head out for the Channel 14 studios to stop Krusto.
Upon entering the building, Homer spots a box marked "Free Candy." As Homer gets closer, he opens it to find Krusto concealed within. The Losers begin counterattack Krusto with their weapon, but no effective against him. As Krusto became invincibility, he slips on some marbles, setting off an extended slapstick comedy sequence in which continuously hurts himself. The children started laughing at Krusto, which he surprised by this. Subsequently, Krusto continues to hurt himself for laughter until Marge gives the bombs to him to eat it. The bombs exploded leading Krusto defeat into a drain. Later, the group made a pact to reconvene in 27 years with the intent to permanently defeat Krusto for good. Subsequently, Marge engages in a romantic encounter with Comic Book Guy, who deceitfully claimed Homer's love poem, originally wrote for her in the library, as his own work.
Not It: Part Two[]
27 years later, the year 2017, while Homer is staying in Kingfield to work the local bar, D'ohs Tavern, Moe has taken up rock and roll ventriloquism in Las Vegas, Carl has pursued a career as an astronaut; Marge has launched a successful seltzer company, and together with Comic Book Guy, they have married and are raising two children, Bert and Lizzie.
When Jimbo, Dolph, Kearney, and Nelson check the newly opened pie shop inside that was not supposed to be in the morning, Krusto have killed all of them, who fooled on them, where reported the news by Kent Brockman. His terror has returned in Kingfield and Homer calls the Losers to defeat Krusto once and for all. Comic Book Guy argument with Marge that he cannot allow her to go to help the gang to stop Krusto. However, Marge leaves in the night to confront the situation alone. As the group arrives at D'ohs to have a plan to stop Krusto, Comic Book Guy appears with the children to take Marge home. Marge told Bert and Lizzie to wait in the car while the argument continued. When they saw the weird television set in the store, Krusto has kidnapped them, who then reveals the kidnapping to the Losers on their phones.
Subsequently, the Losers went back to the Channel 14 studios for the last time to confront Krusto to save the children. The Losers encounters Krusto once more that he declared that their childhood fears no longer control them, rendering him powerless. Krusto then reveals that adults harbor something more tantalizing than fears: anxieties. He causes the group to visualize their anxieties and becomes strong with the laughter of his spectral audience. He also reveals that the love poem Comic Book Guy presented to Marge was not authored by him. Bert and Lizzie discover that his power stems from the sign that commands the ghost audience to laugh. As Bert tells Marge to destroy their sign, Homer handed a rock to her and realized that he authored the poem for her. When Krusto attempts to eat and kill Marge, Comic Book Guy jumped into him to saves her, eaten in the process that in the way, Marge manages to destroy the sign with a rock. The ghost audience goes to Heaven as Krusto loses his power and then dies. Before Comic Book Guy dies, Marge tells him that despite the fact, she cannot forgive his deceit, she takes pride in his ultimate display of courage. Bert, Lizze, and the remaining Losers got out of the wreckage, and Homer and Marge to be together.
In the UFO, Kang and Kodos find out that their invasion plan has failed. They search through various Stephen King books to prepare a new strategy for global conquest.
