In the Adventure Time Season 2 episode "Power Animal," gnomes kidnap Finn to power a device that will flip the world, forcing a distracted Jake to rescue him. The episode is widely celebrated by fans for its high-energy humor, the "Where is Finn?" song, and the first onscreen appearance of Princess Bubblegum and Marceline together. For more details, visit Adventure Time Wiki . Power Animal | Adventure Time Wiki | Fandom