Mortal Recoil

Watch Adventure Time Online 
Adventure Time - Season 2 - Episode 25

Adventure Time - Mortal Recoil

About this Adventure Time episode:
Adventure Time - Mortal Recoil is the 25th episode of Adventure Time season 2.
In this Adventure Time episode, after Princess Bubblegum falls into the Lich's well of power, she is rushed to the Candy Kingdom hospital and saved. However, the Ice King feels that something is awry and tries to warn Finn, but Finn angrily scolds him and tells him to leave the kingdom. Finn and Jake then focus their energy on taking care of Princess Bubblegum, whose behavior seems off. At first, she claims that she needs some rest, but soon she begins acting strangely, such as convulsing in her bed. Finn leaves to acquire items that Bubblegum requests—which includes weapons-grade plutonium, ammonium, and gasoline among other items - and Jake tries to cheer Bubblegum up with a song.
This, however, back-fires and Bubblegum ignites her bedroom with some sort of dark magic. It is apparent that Bubblegum has been possessed by the spirit of the Lich. Finn returns, and the two discover Bubblegum mixing the ingredients that Finn retrieved in her bathtub and then drinking it. She soon deforms and turns into a grotesque monster; she hurls Finn and Jake through a wall and the two discover the Ice King. He finally tells them that he saw with his "wizard eyes" the spirit of the Lich descend into Bubblegum after she fell into the well of power. The three make an unlikely alliance, teaming up to beat the Lich-possessed Bubblegum.
While Finn distracts her, the Ice King uses his ice powers to freeze Bubblegum. Their moment of success, however, is cut short when the still-frozen Bubblegum tips over and shatters everywhere. Her body parts are again rushed to the hospital where she is reassembled. However, there are not enough pieces to complete her, and so she ends up reverting to a 13-year-old girl. Finn, who is also 13, is excited, but the Ice King temporarily gives up his pursuit of Bubblegum due to her age. As the episode ends, it is revealed that the Lich has once again possessed the body of the snail, who angrily waves goodbye to the camera.