Stan mixes up his nighttime routine after his 100th kill, but mistakenly unleashes a “good” Stan in his sleep – Jekyll & Hyde-style – who’s hell-bent on pursuing all the…

Francine tries to be a better friend to one of Roger’s personas who is selling her homemade jeans on TV. Stan and Steve swap eyebrows.

Kitty’s sister visits and Kitty thinks she’s only there to show off that she’s more successful. After going to see an X-rated movie, Eric tries a new move on Donna…

Mr. Burns will build a doomsday ark after he believes that the end of the world is near when he sees an old Orson Welles show about Nostradamus. Meanwhile, Professor…

When Bart goes missing, the town puts together a search party to find him. After most give up hope, Sideshow Bob manipulates Millhouse into revealing where Bart is hiding.

As future Lisa writes her college application essay for Harvard, she recalls past disappointing birthdays that helped shape her.

Homer discovers that Maggie is a whistling savant and launches her baby-celebrity career. Meanwhile, Marge impresses Fat Tony with her interior design taste, and he hires her to style his…

Bart gets in trouble on Grandparents Day at school and is forced to hang out with Skinner’s mother as punishment. After spending time with various grandmas in the neighborhood, he…

With the end of the world looming, Homer decides to join an off the grid group of survivalists who’ve set up a secret sanctuary outside of Springfield to prep for…