Summary
The Overtakers have cursed Finn, turning him into an evil being known as the Dark One. Now leading the Overtakers, he plans to free Maleficent, Hades, and Chernabog from the Underworld they are trapped in. The keepers must now find a way to stop the Dark One from freeing the captive leaders, but how can they find it in themselves to harm Finn to save everyone? They're his only hope