Finn and Jake come across village after village where all the gold has been stolen by a mysterious monster called The Gut Grinder. And each village presents more evidence that The Gut Grinder looks so much like huge!Jake, Jake must be him! Eventually Jake starts doubting himself, and when in the Spike village he gets thrown in jail, decides that it must be true. Meanwhile Finn finds one last bit of gold, which attracts the real Gut Grinder (who is not Jake). Jake, who has gone crazy, breaks out of jail and fights the Gut Grinder... then snatches the gold for himself and runs away. Finn tries to remind him who he is, but fails. Sad, he takes Jake's viola and starts playing. Badly. Jake abhors this sound so much that he returns to take his viola back, in the process remembering who he really is. And the Gut Grinder turns out to be a Spike woman in a suit made after Jake because she thinks he's hot.
Tropes
- Beautiful Dreamer: Finn assures Jake he isn't sleepwalking because he watches him sleeping.
- Big "WHY?!": Mayor Cameron of Spiky Village lets out a series of "Why?!"s when he discovers the Gut Grinder is his wife Sharon in disguise.
- Brick Joke: Jake objects to a group of villagers calling him cute and insists he's "hot". When the Gut Grinder turns out to be Sharon of Spiky Village in disguise, she claims she designed her costume to look like Jake because she thinks he's hot.
- Bring My Brown Pants: Jake trolls one of the soft people by claiming he is the Gut Grinder, scaring the poor guy into going "wee-wee". The soft people apparently "wee-wee" out of their armpits.
- Furry Reminder: Pats and belly rubs are enough to turn Jake to mush, and Finn mentions Jake put his nose in poop.
- Greed: Jake, when he's deluded himself into thinking he's the Gut Grinder due to all the evidence and being under the influence of tummy rubs, starts obsessing over gold. When it turns out to be Sharon she states her motive was gaining more funds to go shopping with.
- Hellish Pupils: The Gut Grinder has creepy-looking spiral eyes.
- Identical Stranger: The Gut Grinder is a brown, hairy beast that strongly resembles Jake. Actually, it's a woman named Sharon who looks nothing like Jake; she just designed her Gut Grinder costume that way because she thinks Jake looks hot.
- Superpowered Evil Side: Jake, convinced he's the Gut Grinder, becomes gigantic and aggressive. He even manages to beat the real Gut Grinder.
- Tomato Surprise: Discussed and subverted: Jake is not the Gut Grinder after all.
- Wingding Eyes: Jake briefly displays this when being rubbed and when gold crazed, the Gut Grinder has crazed eyes these by default.
