An evil werebat king messes with Finn and makes him believe that he's a villain.
She Came From The Nightosphere
Marshall Lee's mother, Helen Abadeer, comes to pay her son an unexpected visit, which doesn't go too well.
The Pups Vs. Me-Mow
Me-Mow and her three brothers plan to get their revenge on Jake by assassinating the pups.
Finn gets stuck in a spider-web while trying to get a magic silk that can fix any problem.
All Stupid Penguins
Ice King has Finn and Jake teach Gunter how to be smart.
Chaos In The Cloud Kingdom
Finn and Jake set out to save the Cloud Kingdom from a vicious dog that has created an evil clone of Finn.
Under The Tree Fort
Finn and Jake decide to dig for their dad's lost treasure, and end up in the Underground Kingdom, where they meet villains such as a giant dragon, Underground Princess, and a creepy old man who keeps stalking them.
Bat King kidnaps Flame Princess and decides to hold her for ransom since he can't eat her without getting burned.
Burnt To A Crisp
While looking for a mysterious fugitive, Fionna and Cake meet a fiery stranger.
When Life Gives You Lemons
The Earl of Lemongrab is kidnapped by a mysterious stranger.
Finn and Jak go on a quest to save Jungle Princess and her tribe of Jungle People from a hoard of Lub Glubs.
An evil wizard named Banano puts a curse on the Land of Ooo that turns everybody besides Finn, Marceline, Ice King, BMO, Neptr, and Tree Trunks into a zombie.
Finn and Jake tell scary stories in the tree fort on Halloween night, which include The Shmowing, A Nightmare In The Candy Kingdom, and Draculene.
Finn and Jake try to get Marceline to help them investigate a secret vampire fighting arena.
The Haunted Tree Fort
Finn and Jake disover a ghost living in the tree fort.