After a trip on Mr. Burns' private plane, Homer enlists the aid of a life coach (guest voice Stephen Colbert) to help him find a job that allows him to use a corporate jet.
After Homer injures himself in a fall, he develops a talent as an opera singer.
Marge undergoes a counseling program that helps parents raise their children to be independent at an early age; Homer becomes a tow-truck driver.
Caught in a bank robbery, Marge convinces the criminal (guest voice Steve Buscemi) to turn himself in by promising to visit him in jail.
Homer, living a double life as a secret agent, must kill Kent Brockman; Bart and Lisa help Kodos reconnect with his home planet; Flanders decides to spook Springfield's children.
Milhouse starts to act like a man when he thinks his parents died at sea; Homer cannot remember the color of Marge's eyes.
A friendly comic-book buff (guest voice Jack Black) treats Bart, Lisa and Milhouse like royalty; Marge launches a gym for ordinary women.
TV commercials influence the Simpsons to go to a rib restaurant where Sideshow Bob (guest voice Kelsey Grammer) is waiting in an elaborate hoax to lure them to their doom.
When a potent drink erases the last 24 hours of his memory, Homer seeks help to try to piece together the events that led to his family being gone.
Homer destroys Springfield's fast-food district; Mayor Quimby decides to have an early election.
When Bart and Lisa unearth Marge's diploma from Springfield University, Marge reminisces about her college days, when she dated a pretentious professor and Homer became a grunge music star.
To celebrate Valentine's Day, Homer takes Marge to the tunnel of love at a carnival, but when Bart pulls a prank they become hopelessly stranded; Homer tries to cheer Marge up by telling her a love story.
Bart suspects that one of his friends is a rat when his seemingly fool-proof pranks start to backfire; Homer grows very attached to the fancy loaner car he gets after Marge damages their vehicle in an accident.
Marge hires a nutritionist, who puts Homer on a diet, but Homer decides to sneak in snacks on the side; the prank Bart and Lisa play on Martin Prince goes terribly wrong.
Lisa persuades Marge to pursue her childhood dream of becoming a ballerina by auditioning for a ballet academy; Homer shows Bart his secret room where he manufactures beef jerky.
When Mayor Quimby realizes the city of Springfield has gone broke, Lisa goes through the town's financial records and discovers millions in uncollected city taxes; Marge reluctantly allows a fugitive to stay with the family.
Bart tries to save a cow from the slaughterhouse; Homer and Marge devise a plan to stop Bart from getting married.
When Lisa enters a documentary about her family in the Sundance Film Festival, Homer, Marge and Bart are embarrassed by the candid look at their lives.
When Homer's mother dies unexpectedly, he decides to fulfill her final wishes by scattering her ashes over Lake Watershed at Springfield Monument Park.