The third segment mirrors the plot beats of the franchise, including the iconic gates and the "chaos theory" warnings. Quick Stats Director: Matthew Faughnan Writer: Joel H. Cohen
The episode follows the classic three-segment anthology format, framed by a brief intro where the family participates in a "soul-eating" contest in (a parody of H.P. Lovecraft’s Innsmouth). "Intrusion of the Pod-y Snatchers" [S30E4] Treehouse of Horror XXIX
"Treehouse of Horror XXIX" is the fourth episode of and the 643rd episode overall. It originally aired on October 21, 2018. Episode Summary The third segment mirrors the plot beats of
A parody of Invasion of the Body Snatchers . Plant-like aliens from the planet Mapple (an Apple Inc. parody) arrive on Earth via a new "M-Phone" launch. They replace Springfield’s citizens with vegetable clones who lack human emotions—which, ironically, makes the town much more peaceful until the "clones" discover the original humans' secret stash of discarded technology. "Multi-Placements" Lovecraft’s Innsmouth)
A parody of the movie Split . Lisa develops multiple personalities (including a wealthy socialite and a street-smart kid) after a bad reaction to a chemistry experiment. She kidnaps Bart, Nelson, and Milhouse, trapping them in a cell. The segment ends with a twist involving the "placement" of brands and a meta-commentary on the episode's own production. "Geriatric Park"
Homer mentions the sci-fi series during the first segment.