BMO goes on a mission to terraform Mars, but a small, lonely bot takes him to a dying space station located in the farthest reaches of the galaxy.
Tropes
- Alas, Poor Villain: The last we see of Hugo, he's floating in the dark escape pod with a depressed look on his face. However, Olive voluntarily comes back to be with him in the pod, causing him to genuinely smile.
- Art Shift: Hugo's origin is shown in an animated segment done by David Ferguson, the same man behind "Water Park Prank."
- Barefoot Cartoon Animal: Averted for the most part, Y5 even has a cool pair of high tech gravity boots, but accidentally looses them in a card game against Mr. M, and is then barefoot for a portion of the special. Stealing them back leads to Y5 learning Mr. M and Hugo are causing the Drift's pod failures.
- Bittersweet Ending: The Drift's inhabitants managed to stop Hugo from absorbing the remaining energy from the space station, but the damage he and Martin caused is done. The station is still falling apart, most of the pods are still dead, communications are offline and everyone needs to manage the remaining resources if they want to survive. But on the bright side, Y5 managed get the praise and respect she wanted from her parents and the inhabitants are joining forces to find a way to leave the station. And to top it all off, the episode ends with BMO meeting Finn and Jake for the first time.
- Call-Forward:
- BMO's Dying Dream has him talking with his alternate-colored selves seen in "The More You Moe, the Moe You Know"
- Hugo's backstory involves little grey aliens who look like the ones from "High Strangeness".
- Canon Character All Along: Mr. M is heavily implied (but never outright stated) to be Martin. It's possible that his actions in this episode were the reason why he was taken to the Crystal Citadel.
- Chekhov's Gun: Y5 uses the duck call BMO got from the lard rancher to summon a ride to the Jungle Pod.
- Creative Closing Credits: The credits shows some footage from the Astro BMO model that was launched into space on July 2019.
- Disney Death: BMO gets broken into pieces and he even seems to think she's dead. Luckily it just takes putting him back together and letting her warm up to make him as good as new.
- Evil All Along: Zig-Zagged, at first Hugo seems like an obviously evil Man Behind the Man, but then he seems reasonably to be trying to save the Drift. Then it turns out he really is evil and was planning to destroy the Drift. Then the ending as he floats alone in space seems to imply he's not all bad after all.
- Meaningful Rename: Parodied; the shy rabbit-like alien Y4 decides to change her name... to Y5.
- The Reveal: Earth's massive crater? It was caused by an unknown energy blast that took a massive chunk off the planet. It does not seem to be related to the Lich's birth.
- Screw This, I'm Outta Here: When his boss Hugo leaves him in the lurch, Mr. M tries (and fails) to escape the failing space station with a jetpack.
- Shout-Out: CGO sings the theme song to Frasier, the spinoff of Simon's favorite show Cheers .
- Stealth Prequel: The episode is revealed to take place years before the events of the original series, as the ending shows BMO meeting younger versions of Finn and Jake for the first time.
- The Un-Reveal: Earth's massive crater was indeed caused during the Mushroom War... by an unknown energy explosion that may or may not have been directly related to the conflict.
- Villain Has a Point: Hugo winds up being a scumwad who openly admits that his plans will only benefit himself and certain chosen followers but he is right that the residents of the Drift were completely in favor of helping in said plans because they believed their survival was a guaranteed certainty if they did so.
- Wham Shot: The very end of the episode shows the Treehouse completely intact alongside a young Finn playing with Jake.
