Finn and Jake accompany Princess Bubblegum on her study of the Desert of Wonders. However, they are soon attacked by goo monsters, and Finn and Jake think that Bubblegum's ice-cream sandwich assistant James is sabotaging the mission.
Tropes
- And Then John Was a Zombie: James who becomes an Ooze Zombie.
- Call-Back: The Ooze Zombies from "Simon and Marcy" make an appearance in the present.
- Cloud Cuckoo Lander: James, who makes robot sounds despite being an ice cream sandwich.
- Cold Equation: Princess Bubblegum makes the decision that James is more expendable than herself, Finn, or Jake.
- Colour-Coded for Your Convenience: Finn's suit is blue, Jake's yellow, Bubblegum's pink and James' red.
- Heroic Sacrifice: Zig-Zagged. Finn volunteers to sacrifice himself to the Ooze Zombies so the rest can escape, but Princess Bubblegum knocks him out and uses James as the sacrifice instead.
- How We Got Here: The episode opens with Finn and Jake going to a funeral then one week before...
- The Load: A rather tragic deconstruction James who had (apparently) made the situation worse and worse, finally sacrifices himself to save everyone. Only to become an Ooze Zombie himself.
- Our Zombies Are Different: Ooze Zombies, who were mutated residents of the old world. They have ooze coming out of their mouths and empty eye sockets.
- Red Shirt: Deconstructed. James is useless and is somewhat annoying but his Heroic Sacrifice and later becoming a zombie is surprisingly played seriously.
- Sequel Hook: After the ending with James's clone, the original James, now a zombie, crawls out of the pit, followed by more zombies.
- Shifting Sand Land: The Desert... of Doom.
- Wham Episode: It is made clear that PB is willing to intentionally force one of her citizens to sacrifice himself as she considers Finn and Jake more valuable.
- Whole Episode Flashback: The episode starts with Finn and Jake dressed to attend a funeral and the rest of the episode is a flashback explaining why.
