• Wikisimpsons needs more Featured Article, Picture, Quote, Episode and Comprehensive article nominations!
  • Wikisimpsons has a Discord server! Click here for your invite! Join to talk about the wiki, Simpsons and Tapped Out news, or just to talk to other users.
  • Make an account! It's easy, free, and your work on the wiki can be attributed to you.

Eternal Moonshine of the Simpson Mind

Wikisimpsons - The Simpsons Wiki
Season 19 Episode
408 "Funeral for a Fiend"
"Eternal Moonshine of the Simpson Mind"
"E Pluribus Wiggum" 410
"Eternal Moonshine of the Simpson Mind"
Eternal Moonshine of the Simpson Mind Promo Card.jpg
Episode Information
Episode number: 409
Season number: S19 E9
Production code: KABF02
Original airdate: December 16, 2007
Chalkboard gag: The capital of Montana is not Hannah.
Couch gag: Powers of Ten parody
Showrunner: Al Jean
Written by: J. Stewart Burns
Directed by: Chuck Sheetz

"Eternal Moonshine of the Simpson Mind" is the ninth episode of season 19 of The Simpsons and the four-hundred and ninth episode overall. It originally aired on December 16, 2007. The episode was written by J. Stewart Burns and directed by Chuck Sheetz.


"Homer Simpson wakes up to find himself outdoors and covered in snow, without memory of the night before. When he arrives home, he finds everyone missing. Seeking help from Moe and Professor Frink, Homer tries to piece together his memory to find out what happened to him."


During the winter, Homer wakes up in a pile of snow and does not remember the events of the previous day, commenting that he must have drunk heavily the night before. Homer goes home and finds his family missing. Santa's Little Helper attacks him. Homer travels to Moe's, where Moe informs him that he was there the night before and wanted to forget something. Moe explains he gave Homer a "Forget-Me-Shot", which wiped out the last 24 hours of his memory. Clancy Wiggum appears and tells Homer that there was a domestic disturbance at his house last night, which was reported by Ned Flanders. Homer instantly receives a flashback to the night before showing Wiggum questioning Marge about a black eye she had received, to which Marge nervously replies that she walked into a door.

A still-confused Homer goes home, where a picture of Marge causes a flashback of her pleading with Homer to stop, and then rubbing her eye in pain. Horrified, Homer goes to Grampa for help. Grampa tells Homer about Professor Frink's new machine which helps people sort through their memories. With the help of this incredibly painful technology, Homer sees himself walking in on Marge and Duffman. When Marge tells Homer she did not want him to find out about it, Homer assumed Marge was cheating on him. He gets Bart and Lisa to help him. Bart convinces him to take him back to when Homer was 10 to see if he could beat him up. Homer agrees. When Bart beats up 10-year-old Homer, Homer says,"Let's see how you fare against 20-year-old Homer!" Bart then beats up the 20-year-old Homer, which makes the real Homer strangle the real Bart as he so often does when inflamed with anger. Homer loses his memory of his first kiss. Bart takes advantage of this and tells him it was with Apu.

Homer now considers his life to be worthless and goes to jump off a bridge. When he decides not to, Patty and Selma push him anyway. While falling, Homer's life flashes before his eyes, and he sees what happened the previous night. It is revealed that Marge was planning a surprise party for Homer finishing his community service. Duffman, who was hired by Marge to entertain at the party, brings out a bottle of Duff Champagne. Overjoyed, Homer tries to open the bottle, while Marge pleads with Homer to stop, as she wants to save it for the party. The bottlecap flies off the bottle and hits Marge in the eye, Duffman then hands Marge an ice pack telling her she is going to be sore tomorrow. The flashback ends and, instead of falling to his death, Homer lands on a moon bounce, which is at the surprise party onboard a ship.

When Homer questions why Marge lied to Chief Wiggum, she says that she did not want him at the party, because she knew he would bring Sarah Wiggum, who Marge is not very fond of. Lenny and Carl appear and cause a flashback which shows Homer telling his bar buddies that he felt very guilty for finding out about the party that Marge worked so hard on. When Moe offers Homer the Forget-Me-Shot, Carl and Lenny begin to insult him, as he won't remember any of it. Homer then predicts exactly what is going to happen, and tells Lenny to make sure there is a moon bounce at the party. Finally, when Homer wonders why the dog attacked him, Bart replies, "You never feed him, walk him, or let him out to pee."



"Eternal Moonshine of the Simpson Mind" won the Primetime Emmy Award for Outstanding Animated Program in the 60th Primetime Emmy Awards.[1]

In other languages[edit]

Language Name Translation
Italy Flag.png Italiano "Se mi ubriachi cancello i Simpson" If you get me drunk I cancel The Simpsons


The Saga of Carl - title screen.png Wikisimpsons has a collection of images related to "Eternal Moonshine of the Simpson Mind".
Season 19 Episodes
He Loves to Fly and He D'ohs The Homer of Seville Midnight Towboy I Don't Wanna Know Why the Caged Bird Sings Treehouse of Horror XVIII Little Orphan Millie Husbands and Knives Funeral for a Fiend Eternal Moonshine of the Simpson Mind E Pluribus Wiggum That '90s Show Love, Springfieldian Style The Debarted Dial "N" for Nerder Smoke on the Daughter Papa Don't Leech Apocalypse Cow Any Given Sundance Mona Leaves-a All About Lisa