Homer wakes up one morning only to find himself outdoors and covered with snow. With no recollection of what happened the night before, aside from a lingering hangover, Homer makes his way home only to find his entire family missing. Hopelessly confused, Homer makes his way to Moe's bar, where Moe reveals that Homer drank a "Forget-Me-Shot" the night before – a drink is so potent, it wipes out a the last 24 hours of one's memory. When Wiggum informs Homer of a domestic disturbance at his house the night before, Homer begins to worry that he may have done something awful. As he probes his cloudy memory to unravel the mystery, Homer turns to Professor Frink, who hooks him up to a device that allows him to explore his memories, and he interacts with his Memory Family to piece together the night's events.
"E Pluribus Wiggum"
When Homer disposes of a leaky battery along with his fast food containers, he causes an explosion that destroys Springfield's fast-food district. Mayor Quimby proposes to rebuild the district during the next election. The next election, however, isn't until June, so Quimby decides to move it to the upcoming Saturday. This change makes Springfield the first city in the nation to hold a presidential primary. Excitement builds as reporters from around the country descend upon Springfield to cover the debate. The news is dismal though as the candidates turn out to be less than compelling. On the night of the primary, Kent Brockman announces an unexpected turn of events: Springfield voters rejected all the leading candidates and embraced a write-in: Ralph Wiggum. Much to Lisa's chagrin, the leaders of both parties realize that embracing Ralph as a candidate means certain victory come November. Although no one knows for sure which political party Ralph is representing, he insists that everyone is invited to his party.
"That 90's Show"
When Bart and Lisa discover Marg''s diploma from Springfield University, Marge reveals that she had attended the university back when she and Homer had first started dating. In a flash back, Homer gives up his dreams of becoming a musician and takes a job at his father's laser tag warehouse to support Marge attending Springfield University. However, when Marge finds herself attracted to an offbeat professor named Professor August, Homer decides he has had enough of Marge's wandering eye. Homer instead focuses his emotions on his music, inventing a new sound called "grunge." As Marge continues to date the pretentious professor, Homer becomes the hottest grunge artist around, as evidenced by Weird Al's parody of his music. But when Marge sees a special news report on MTV with Kurt Loder announcing that Homer's band, Sadgasm, has broken up and that Homer is holed-up in a mansion hopelessly addicted to drugs, Marge must choose between her new life and her old love.
"Love, Springfieldian Style"
To celebrate Valentine's Day, Homer takes Marge to the Tunnel of Love at a carnival. But when Bart pulls a prank involving some Jell-O, they become hopelessly stranded. Homer tries to cheer Marge up by recounting some of the greatest love stories of all time, beginning with Bonnie and Clyde (as Marge and Homer) who steal each others' hearts as they rob their town dry. Next, Marge tells the story of two dogs, Sadie (Marge) and Scamp (Homer), in her take on "Lady and the Tramp." Lastly, Bart spins the final romantic tale in his recounting of the rock-and-roll romance of the The Sex Pistols when Nancy Spungeon (Lisa) falls for the rebellious Sid Vicious (Nelson).
"The Debarted"
When a new, tough-looking kid at school named Donny teams up with Bart to help him carry out his pranks, Bart thinks he has found his ultimate partner in crime. However, when Bart's seemingly foolproof pranks begin to backfire, Groundskeeper Willie warns Bart that he smells a rat in Bart's group of friends. With Principal Skinner on his case and the possibility of expulsion on the horizon, Bart must figure out who he can trust and who he must get rid of before it is too late. Meanwhile, Homer receives a fancy loaner car after Marge damages their old car in an accident, and he grows extremely attached to his new set of luxury wheels.
"Dial 'N' for Nerder"
Marge hires a nutritionist who puts Homer on a strict diet, but Homer decides to sneak in snacks and meals on the side. Marge becomes suspicious of Homer's weight gain and calls the producers of "The Sneakers," a take-off on "Cheaters." Meanwhile, Bart and Lisa go bike-riding in Springfield National Park, where they run into Martin Prince and play a prank on him. Bart and Lisa are wracked with guilt when their prank goes terribly wrong they think they're responsible for the accidental death of Martin Prince
"Smoke on the Daughter"
When Lisa convinces Marge to pursue her childhood dream of becoming a ballerina by auditioning for the Chazz Busby Ballet Academy, Chazz discovers Lisa's natural talent and enrolls her in the academy instead. During a break from practice, Lisa inhales her fellow ballerinas' cigarette smoke and attributes her improvement in ballet to smoking. Lisa soon becomes addicted to secondhand smoke, with no chance of quitting in sight. Meanwhile, Homer shows Bart his secret room where he manufactures beef jerky. When Homer realizes that a family of raccoons have made off with his beef, he decides to confront the animals.
"Papa Don't Leech"
When Mayor Quimby realizes the city of Springfield has gone broke, Homer suggests they feign a natural disaster in order to obtain relief funds from the federal government. When the plan goes awry, Lisa goes through the town’s financial records only to discover millions in uncollected city taxes. Springfield hits up its most notorious tax evaders, and Lurleen Lumpkin, a country music star Homer once managed, remains the last outstanding debtor. As Springfieldians scour the city to find her, Marge reluctantly permits the fugitive to stay with the family, creating a very interesting dynamic in the Simpson household.
