Ep 24. This Mortal Folly

In season 2 episode 24 of Adventure Time with Finn and Jake titled "This Mortal Folly", Finn and Jake accompany Princess Bubblegum to the Land of the Dead to prevent her from becoming a permanent resident there. They are on a mission to stop the evil Lich from regaining his full power and destroying the world. The trio is joined by a new character named Peppermint Butler, who is the keeper of the dark arts and secret rites.

As they navigate the Land of the Dead, they encounter various ghostly creatures who try to prevent them from completing their mission. They eventually make it to the Lich's lair, where they discover that he has been planning to escape the Land of the Dead and unleash his evil on the living world once again.

Finn, Jake, Princess Bubblegum, and Peppermint Butler must work together to defeat the Lich and his minions, all while trying to avoid being trapped in the Land of the Dead themselves. The episode is filled with action, adventure, and humor as the group faces various challenges and obstacles.

Throughout the episode, there are also several moments of character development and growth. Finn and Jake learn to trust Peppermint Butler and appreciate his unique abilities, while Princess Bubblegum must confront the consequences of her actions and decisions. The episode highlights the importance of teamwork and facing one's fears, even in the face of seemingly insurmountable odds.

Overall, "This Mortal Folly" is a thrilling and entertaining episode of Adventure Time with Finn and Jake, showcasing the show's trademark blend of humor, action, and heart.