A spooky Halloween-themed opening sequence plays with thunder and screams.

Apu catches Homer smoking inside the Kwik-E-Mart and scolds him.

Chief Wiggum arrests Snake for his third strike, and Snake threatens witnesses.

Ed McMahon introduces Snake's execution on a TV show, and Snake is electrocuted.

Homer receives a hair transplant from Snake's corpse at the hospital.

Homer returns home and shows his family his new hair transplant.

Snake's voice speaks through Homer's hair, revealing he is possessed and kills Apu.

Possessed Homer kills Moe at the bar, and news reports the murder.

Possessed Homer tries to kill Bart, but fights the hair's control to save him.

Police arrest Homer, and Wiggum removes the hair with a vacuum, ending the possession.

Marge forbids Bart and Lisa from watching the cartoon and takes the batteries.

Bart finds plutonium and uses it to power the remote, zapping them into the cartoon.

Bart and Lisa are trapped in a violent Itchy and Scratchy cartoon and attacked.

Bart and Lisa try to escape the cartoon but are thwarted by cartoon physics.

Homer tries to use the remote to get Bart and Lisa out of the cartoon.

Homer finally presses exit, rescuing Bart and Lisa from the cartoon.

Maggie exhibits strange alien-like behavior, alarming her family.

Kang receives a transmission from Maggie and decides to visit Earth to claim his daughter.

Kang arrives at the Simpsons' house and reveals he is Maggie's father, leading to a custody dispute.

The custody dispute is settled on The Jerry Springer Show, which ends in chaos.

Kang threatens to destroy Washington if he doesn't get Maggie, but the family escapes.

The episode ends with a space-themed theme song and a final joke about Regis's eyes.