Treehouse of Horror XX

"'Treehouse of Horror XX" is the fourth episode of The Simpsons twenty-first season. The episode first aired on October 18, 2009 on Fox. The twentieth Treehouse of Horror episode, it contains three self-contained segments. An estimated 8.59 million viewers tuned in to watch the episode.

Opening Sequence
Monsters come to life, and they're bullied by Jimbo, Dolph, and Kearney. They buy costumes at a shop and put them on. Then they go to the Simpson house. They meet and fall in love with women at the party. Then their wives come in and they're mad at them. The wives are furious at Homer, so they tear off his head and it falls in the punchbowl with his eyes turning into XX.

Dial 'M' for Murder or Press # to return to main menu
Lisa is mad at Miss Hoover for not choosing her to represent the class at the reading roundup, and she gives Lisa detention. She sees Bart there, too. He tells her that he'll get revenge on Miss Hoover if she gets revenge on Mrs. Krabappel for putting him in detention. Lisa ding-dong-ditches Mrs. Krabappel, but Bart kills Miss Hoover. Lisa tells Bart she'll tell Principal Skinner, but Bart has killed him, too. So Lisa decides she has to kill Bart. She chases him with her knife but when they get on the merry-go-round, Lisa decides not to kill him, so she throws her knife in the air but when it falls to the earth, it lands on Bart and stabs him in the head. Then Lisa and Mrs. Krabappel walk off smiling to each other.

Don't Have a Cow, Mankind
Kent Brockman is reporting Krusty's new Burger². He tries it, and his eyes lose their pupils and get red underneath and he goes crazy(becomes a muncher). He bites Krusty, who also becomes a muncher. Munchers bite regular people, so they become munchers, too. Later, Bart is hungry but would apparently rather starve than eat any of the fruit the family have in plenty, so he sneaks out and against all common sense eats a Burger², but he doesn't become a muncher. The rest of the family wonder why. They phone up doctor Hibert who is busy killing munchers in his office and he says it's possible Bart is immune to the burgers taint and instructs them to go to the safe zone, right before he is overun by munchers. When the family try to sneak out of the house to take Bart to the safe zone Homer yells loudly causing everyone who has became a muncher to swarm the Simpson house. Rainier Wolfcastle kills the munchers blocking the front door and tells them if they want to be safe, they should go with him, but he is immediately bitten by the munchers. Apu comes just in time to save them in an armoured suv, being a vegitarian he didn't eat a burger and as a store clerk he is armed enough to keep the munchers at bay and he drives them over to the dump. Apu gets out to push them over a heap of garbage. Then the Simpsons drive away, leaving Apu behind, who gets eaten by the munchers. The car then runs out of gas, so they have to walk to the safe zone, and protect Bart, so they'll all be immune to muncher bites, since he is. On the way to the safe zone Homer gets bitten by Mr. Burns (muncher) and turns into one, luckily Bart takes the gun off Homer and trap him in a cage. They get to the safe zone and a soldier says they need to eat Bart to gain his immunity,. Marge refuses to let them and says their must be another way. 28 days later the world has returned to normal, people are immune and it would appear that all surviving munchers were cured, and all they had to do to gain the immunity was let Bart bath in a massive pot of soup they all must eat.

There's No Business Like Moe Business
In the style of a Broadway musical (the entire segment is a stage play, the violence is fake and nobody actually dies), Homer and Marge are at Moe's Tavern together. Homer falls down the door that leads to the boiler room, and Moe doesn't want Marge to know that this happened, so he tells her that Homer wants to leave her to see what it's like to be gay. They drink beer together(which got mixed with Homer's blood). Marge decides to say yes, but later, Homer appears with what pumps the beer at the bar attached to him and attacks Moe. Even though Homer has a pump through his back Marge still loves Homer.

At the end everybody in the episode sings to the Simpsons theme song, singing to the audience that they hope they enjoyed this Halloween episode. Kang then says 'Shhh!!!!' due to Kodos sleeping with a magazine on her helmet.

Other Airdates
It was aired on the 3 November 2009 in Australia on channel 10.

It was aired on the 4 February 2010 in the UK on Sky One.