Bart and Lisa try to reunite Krusty the Clown with his father.

Krusty decides to do what he never did when he was thirteen years old - have a Bar Mitzvah.

The antagonism between Krusty and the new female co-star forced upon him soon turns to romance, while a headhunter encourages Homer, Lenny and Carl to take a job at another nuclear power plant.

Homer takes a dangerous dive into an isolated canyon on Candy Peak, but when a crashing boulder traps his arm, he channels Aron Ralston to save himself. In "The Diving Bell and Butterball," the first of three hair-raising Halloween tales, a venomous spider bite leaves Homer paralyzed, but when Lisa discovers Homer's ability to communicate through natural gases, he is able to express his love for Marge. The killer spells continue in "Dial D for Diddly," when Ned Flanders, devout preacher by day, transforms into a cold-blooded vigilante by night. In the final terrifying tale, "In the Na'Vi," Bart and Milhouse are sent on a mission to obtain a sacred extract on a distant planet. They morph into the land's indigenous one-eyed avatars, but when Bart finds love and an eternal mate abroad, he is caught in planet warfare.

Krusty the Clown is stuck in a rut when the television network pulls his show from the air and his talent agency drops him as a client. But when the Simpsons introduce him to seasoned agent Annie, they are surprised to learn that Annie was Krusty's very first agent. Despite their rocky relationship, Annie is convinced to re-sign Krusty and craft his career comeback. But when Krusty's retro comedy show reboot is deemed a critical success, Krusty must decide to stay with his agent or side with the network executives.

The town votes to kick the Simpsons out of Springfield, so they decide to move to the Outlands.

Krusty and his daughter spend Christmas with the Simpsons; Reverend Lovejoy seeks converts to boost attendance at church; A Christmas toy scares Maggie.

Bart goes to prankster rehab after a clown-mask prank terrifies the town and ruins Krusty's career causing him to give up comedy and try serious drama.

When Bart falls into a coma after he is struck by lightning, he is visited by ghosts seeking closure.

The documentary crime series "Dateline: Springfield" goes in-depth to solve the case of Lisa's missing college fund.

Lisa and Nelson become an unlikely couple in the future.