Finn and Jake chase the Lich through a dimensional portal and meet a wishmaster. After the Lich wishes that humanity never existed, Finn wishes that the Lich never existed.

Finn and Jake chase the Lich through a dimensional portal and meet a wishmaster. After the Lich wishes that humanity never existed, Finn wishes that the Lich never existed.

A series of short stories all centered around a common theme, hosted by a mysterious man named Cuber from the future.

The guys' game of catch goes awry when their throwing disc is lodged in a large tree.

Finn receives a bag full of miniature versions of his friends.

Jake's a daddy, but being a father and keeping his rainicorn pups from killing themselves or each other is a lot harder than he imagined.

Finn, after realizing that he cannot go anywhere without folks stopping to thank him for being a hero, decides to create an alter ego. He shaves part of his hair, makes a fake mustache, and takes the moniker Davey. However, Davey soon begins to take over, and Jake is forced into action to get his old friend back.

Ice King, NEPTR, Tree Trunks, Shelby, and Lemongrab are trapped inside a mysterious dungeon and must work together to free themselves.

Princess Bubblegum sends Finn and Jake to investigate a message of distress from the Earls of Lemongrab.

Finn's hat comes to life after it is touched by a wizard who can bring inanimate objects to life. Unfortunately, the hat wants to be placed on someone's head so that it can take them over and fill them with evil. Finn, Jake, and the wizard track the hat down, and manage to turn the hat good.

In this episode, the princesses are tired of Ice King’s crazy Fionna and Cake fan fiction stories, so Marceline stops by the Ice Kingdom to show him how to properly write a story.

Flame Princess begins to doubt whether or not she is in fact evil. Finn is insistent that she is not evil and takes her on a journey into a dungeon to help her sort out her thoughts. Flame Princess eventually proves to be a lover of destruction, but assures Finn that she only destroys bad guys.

Xergiok, the former gobling king who was deposed by Finn and Jake in the second season episode "The Silent King", claims to have turned over a new leaf.

A look at what Ice King and Marceline were like 996 years ago.

The Ice King decides to create a computer virus that will delete everyone in Ooo except for him and Princess Bubblegum. Finn and Jake hack into the universal source code and attempt to destroy the virus before they themselves are deleted.

Finn begins second-guessing his relationship with Flame Princess, so he builds a giant pillow fort. While navigating it, Finn seemingly falls asleep and dreams that he ends up in a pillow world where he marries a pillow woman named Roselinen (Mandy Siegfriend) and has two children with her. Finn eventually wakes up in the real world, and he receives a call from Flame Princess, reaffirming their relationship.

BMO is kidnapped by an eagle and then is forced to find a way home. On its way, BMO meets Bubble (voiced by Levar Burton) and a baby, and the three decide to journey home together. BMO and Bubble grow attached to the child until the baby's mother finds and takes her child, devastating BMO. The remaining two make their way back home and profess their love for each other, until Jake pops Bubble. BMO's sadness is shortlived, however, as Bubble is revealed to actually be Air, and will now be with BMO forever.

Ice King gets super jealous when he finds out that he wasn't invited to the Princess Potluck.

Finn and Jake stumble across a horse named James Baxter who has the ability to make sad people feel better.

Finn and Jake make a bet to see who can not talk the longest, and the two use signs to communicate.

Peppermint Butler thinks that Bubblegum is working too hard in her lab, so he tries to get her a suitor.

After another one of his schemes fails, the Ice King decides to give up.

A series of short stories that involve, among other things, a time machine and Cinnamon Bun's fear of the dark.

Jake Jr. gets involved with a group of troublemakers, and Jake is forced to reunite his old gang—which includes Tiffany who first appeared in the first season episode "My Two Favorite People"—to rescue his daughter.