Earth & Water: Princess Bubblegum subjects Flame Princess to a series of tests to gauge Fire Princess' fiery tendencies. But when there's an emergency at the treehouse, and Princess Bubblegum leaves Cinnamon Bun to watch Flame Princess, her experiment might literally backfire in her face. / Too Old: Finn, Jake and Princess Bubblegum discover a talented mutant named Lemonsqueak at The Pageant of Mutants. Now, they must find a way to free him from the Lemongrabs.
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