My Way or the Highway to Heaven
Treehouse of Horror XXIX
Baby You Can't Drive My Car
Treehouse of Horror XXVIII
Treehouse of Horror XXIX
Treehouse of Horror XXX
Donut Homer This episode is considered non-canon, and the events featured are not part of the timeline of the series' continuity.

For the continuation series of Halloween specials, see Treehouse of Horror Series.

"Treehouse of Horror XXIX" is fourth episode of Season 30 and the 29th Simpsons Halloween special.


Homer wins an eating contest against the mythical Cthulhu, Springfield is overrun by plant body-snatchers, Lisa finally snaps and Mr. Burns opens a retirement home with some Jurassic upgrades.


Intrusion of the Pod-Y Snatchers

Springfield is overrun by plant body-snatchers.


Lisa finally snaps.

Geriatric Park

Mr. Burns opens a retirement home with some Jurassic upgrades. There, they inject all of the senior citizens with dinosaur DNA.

Full Story

Opening Sequence

Microsoft Edge 10 21 2018 10 33 29 PM

Homer Simpson beats Chthulhu in an oyster-eating contest. Chthulhu vomits and asks what Homer wants, to which Homer answers that he wants to eat Chthulhu.

Chthulhu is then shown in a cooking pot and The Simpsons (expect of course Lisa) enjoy hot-dogs made of Chthulhu's Tentacles.

When Homer Poke Chtulhu and Homer Says: Ooo! Ink Sec! and Poke Chutlhu Purple Splatter On Camera Title Says: Treehouse of Horror XXIX

Intrusion of the Pod Snatchers

The segment starts off with an underwater base of Mapple where the late Steve Mobbs (on screen) tells the new Myphone and the new unfunny version of him to a hyper audience. When everyone is on their phone the unfunny Steve is revealed to be a plant alien on a mission. Now on the plant planet they shoot spores to Earth (going right next to the Futurama ship with a cloth saying "BRING BACK FUTURAMA" and then getting blown up). In Springfield, everybody transforms into plant versions. Comic Book states this is a homage to the movie Invasion of the Body Snatchers while the movie itself was a ripoff of The Thing When a plant version of Comic book guy says "pad" Milhouse and Bart get scared and run away. The Plant people see the citizens with pods (Mapple products) and ask where they found those. Bart says they found it under the living Christmas tree.


After a sleepover at the the Van Houten Residence, Milhouse, Nelson, and Bart awake to find themselves inside a cell, suddenly freed by Penelope, the one that trapped them in it. Penelope, which is actually a multi-personalitied Lisa -- similar to James McAvoy's lead character in the M. Night Shyamalan film, Split (2016) -- acting strange, closes them in again after they don't ask for an encore on her performance.

Lisa attacks and kills Milhouse and Nelson, before Bart asks her what happened to her, to which Lisa tells the story: Bart grabbed Lisa's spelling test, changing her answers, mocking Miss Hoover and granting her a F. Lisa has a last change and gives Bart a last chance to save himself and he redeems himself, saving himself from being killed by trash, while Milhouse was transformed into a "paper boy".

Geriatric Park

Mr. Burns opens up a Jurassic-themed retirement home, a park filled with elders rejuvenated mixing their DNA with dinosaurs'. He brings Springfielders to the park, showing them the new "retirement home". At first they're all human, healthy and feeling young again, with incredible strength too, but once Homer raises the temperature after Grandpa complains about the temperature being too cold, they transform into dinosaur creatures.

Visitors and Mr. Burns are killed by the elders, while the Simpson family are threatened by Grandpa and Jacqueline Bouvier, but Lisa courageously confronts Grandpa, and find out they all just needed to be cherished and respected. In the end the Simpson family escapes alive and unharmed, though their helicopter is being flown by pterodactyl Agnes.



Treehouse of Horror series
Season 29 Season 30 Episodes Season 31
Bart's Not DeadHeartbreak HotelMy Way or the Highway to HeavenTreehouse of Horror XXIXBaby You Can't Drive My CarFrom Russia Without LoveWerking MomKrusty the ClownDaddicus Finch'Tis the 30th SeasonMad About the ToyThe Girl on the BusI'm Dancing As Fat As I CanThe Clown Stays in the Picture101 MitigationsI Want You (She's So Heavy)E My SportsBart vs. Itchy & ScratchyGirl's in the BandI'm Just a Girl Who Can't Say D'ohD'oh CanadaWoo-hoo Dunnit?Crystal Blue-Haired Persuasion
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