Linus is writing his yearly letter to the Great Pumpkin, despite Charlie Brown's disbelief, Snoopy's laughter, Patty's assurance that the Great Pumpkin is a fake, and even his own sister Lucy, who threatens to "pound" him.

Known for being much darker and more violent than an average Simpsons episode, the "Treehouse of Horror" episodes take place outside the show's normal continuity and completely abandon any pretense of realism, usually involving the Simpson family in some horror, science fiction, or supernatural setting.

The special follows the toys on a road trip. When a flat tire leads Bonnie and her mother to spend the night in a roadside motel, Mr. Potato Head is the first to go missing. The others search for him and soon discover the motel manager's nefarious plot to steal unattended toys and auction them online.

Euchariah, a young Who with astigmatism, forces the Grinch to abandon his trek and return home without terrorizing Whoville.

After considering a number of options, Garfield decides he and Odie will be pirates.

Four aliens--Gleep, Romtu, Scoota, and Bing--have been sent to Earth from the planet Mars in order to find a rare material known as "coobi" (which is later revealed to be candy).

The Witch must fly over the moon once a year for Halloween to begin, but this year she refuses because she's tired of being the brunt of Dracula's jokes. In the end, of course, two earnest children convince her to carry on the tradition.

Speaking "Rigellian", which coincidentally sounds exactly like English, Kang and Kodos Johnson are green, octopus-like aliens from the planet Rigel VII. They are often bent on the conquest of Earth and have appeared in at least one segment of every "Treehouse of Horror" episode, sometimes as a central focus of the plot, other times in a brief cameo.

On the Isle of Evil, Baron Boris von Frankenstein achieves his ultimate ambition, the secret of total destruction. Having perfected and tested the formula, he decides it's time to retire.

In the magical dimension of Coventry, the royal witch Miranda gives birth to identical twin daughters on Halloween night. But when their father, a powerful warlock, is killed by an evil entity known as the Darkness, the twins are whisked away to a non-magical dimension known as Earth for their own protection.