 Finn and Jake awake in a prison cell full of bananas, confused and unaware of how they arrived at their location. A demonic prison guard tells them that they are in the Nightosphere, the hellish realm ruled by Marceline's (voiced by Olivia Olson) father, Hunson Abadeer (voiced by Martin Olson). The two set off to locate Marceline's father and navigate back to their home dimension. Traversing the Nightosphere, Finn and Jake learn that they need to seek an audience with Hunson Abadeer if they want to leave. Eventually, they reach a line composed of demons who seek petitions from their demonic overlord. Just then, a storm cloud appears in a mist, slaying all the demons present; Finn and Jake barely escape death.
