Ooo's secrets are revealed during a visit from the Lich King.
The Gunthers cause chaos in Ooo.
Frog people seek protection from an evil lizard who's attacking their swamp.
The guys sneak into the Fire Kingdom and are caught in a family feud.
The guys challenge a monster to a fight but end up battling each other.
When a creepy sleep-peeping Lemongrab upsets Princess Bubblegum with his creepy ways, Finn and Jake need to tend to some issues in the Outer Realm.
Princess Bubblegum and Lady Rainicorn go on a quest to find Finn and Jake who're missing after fighting the Ice King.
Finn has a particularly vivid dream, and all of Ooo is in it.
When Finn thinks he's lost a sock, B-Mo is covertly on the case.
Bubblegum may be jealous when Finn starts hanging out with Flame Princess.
Jake becomes a copy of himself after a run-in with Martians.
Finn and Jake play the epic game Card Quest.
Finn and Jake are called to solve a Candy Kingdom hostage crisis when a rogue cookie takes over.
In order to do research for her tell-all memoir about men, Lumpy Space Princess goes undercover working for Finn and Jake.
When Finn finds a porcelain lamb, it transports him into the spirit world and only the Ice King can help get him out!
Princess Bubblegum is concerned over her mortality and reveals her designated successor to Finn and Jake.
Princesses lose body parts under mysterious circumstances.
Finn goes through a transformation after a run-in with a Hug Wolf.
In the forest, a bear sees Finn and Jake and the bear thinks of Finn as his role model. Finn takes the bear home but Jake thinks the bear is creepy. The next morning the bear is dressed exactly like Finn. He starts to mimic Finn a lot. Soon, Finn thinks the bear is impersonating him and taking his identity. Finn accidentally makes the bear cry and the bear rushes into the forest. Finn races after the bear and as a gift, gives the bear the Enchiridion (in this episode it is revealed that Finn and Jake never really use it, only to sit on the grass when it's wet.) The episode ends with the bear giving the Enchridion to the snail that is possessed by the Lich.moreless
A suitor pursues Tree Trunks, but Jake is upset it disrupts her baking.
Finn gets caught in a spider web and ends up mediating disputes between disgruntled spiders.
A collection of short stories tackles the five senses.
Finn tries to prove Flame Princess isn't evil.