Mortal Folly

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Adventure Time - Season 2 - Episode 24

Adventure Time - Mortal Folly

About this Adventure Time episode:
Adventure Time -Mortal Folly is the 24th episode of Adventure Time season 2.
In this Adventure Time episode, while meditating with Finn and Jake, Princess Bubblegum has a premonition involving the Lich, an evil undead sorcerer who was long ago trapped in a block of amber by the legendary hero Billy. Bubblegum tells Finn and Jake about the dream, and the three of them journey to the tree at the top of Bubblegum's palace where the block of amber is hidden; Bubblegum also places magical jewels on Finn and Jake's heads that will prevent the Lich from exerting mind-control on them. While examining the amber, a snail is placed under the Lich's spell and helps break him out while Finn and Jake are not paying attention. The Lich then blasts out of the kingdom, leaving a wave of destruction in his path.
Finn and Jake, after acquiring the legendary gauntlet of Billy as well as a special pink sweater made by Bubblegum, give chase, but they are consistently interrupted by the Ice King, who keeps trying to get Finn and Jake's blessings to marry Bubblegum. Fed up with their dismissive attitude, the Ice King kidnaps Bubblegum and follows Finn and Jake as the two heroes pursue the Lich. The Lich eventually reaches his lair, an abandoned subway station, and creates a pool of green liquid which he plans to use to regain his strength and destroy the world.
Finn, Jake, the Ice King, and Bubblegum follow the Lich into his lair. In the entanglement that follows, Billy's gauntlet is destroyed by the Lich and Finn breaks his jewel. The Lich attempts to exert mind-control on Finn, but Finn is able to resist. It is then revealed that the sweater Bubblegum gave to Finn has the power to repel the Lich due to it being imbued with "liking someone a lot". Finn then takes the sweater and pushes it into the Lich's eye sockets and rips his face apart, seemingly killing him. However, the Ice King accidentally drops Bubblegum into the Lich's evil vat, to the horror of Finn and Jake.