Bart and Lisa use theological arguments to try to reunite Krusty the Clown and his rabbi father, who disowned Krusty when he turned from rabbi to clown.

Krusty discovers that he never had a bar mitzvah as a child. He quits his show to have it as an adult, with the help of his father, Rabbi Krustofski. Meanwhile, Homer hosts a late-night talk show a la "Politically Incorrect with Bill Maher" as a replacement for Krusty's show.

Krusty grudgingly adds a pretty, singing cohost named Princess Penelope to his show in order to attract more female viewers. Girls love her, and ratings improve, but Bart and Milhouse want to get the show back to the way it was. The situation gets more complicated when Krusty and Penelope fall in love and decide to get married. Meanwhile, Homer, Lenny, and Carl consider working at a competing nuclear plant when Mr. Burns cuts off their daily doughnut service.

Simpsons' twentysecond Halloween show.

The Diving Bell and the Butterball:

Homer is bitten by a radioactive spider.

Dial "D" for Diddly:

Ned becomes a serial killer.

In the Na'Vi:

Bart and Milhouse in an Avatar spoof.

Krusty the Clown becomes depressed after getting fired from his television show for being unpopular with children. The Simpson family encourages him to make a comeback, suggesting that he seek help from an agent they met earlier at a television museum. This agent turns out to be Annie Dubinsky, who was Krusty's first agent and former girlfriend.

The Simpsons are evicted from Springfield and join an off-the-grid community outside of town.

But when Homer and Marge try to sneak back into Springfield, they are welcomed with hostility from their former friends and neighbors and begin to appreciate their new and more accepting home.

A Springfield resident dies, Krusty retires after he's offended by a comedy cable channel roast of him, and Lisa tries to protect Homer from getting hurt.

Krusty tries to impress his daughter as they spend Christmas with the Simpsons. Meanwhile, Reverend Lovejoy seeks converts after church attendance plummets, and Maggie is haunted by a spooky Christmas toy.

Everybody is now horrified of clowns after Bart's prank using clown masks, which also causes Krusty to lose his job. He attempts a comeback as a dramatic actor in the play "The Salesman's Bad Day", with Llewellyn Sinclair as his director.

Bart falls into a coma after being struck by lightening.

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