A human boy named Finn and adoptive brother and best friend Jake the Dog, protect the citizens of the Land of Ooo from foes of various shapes and sizes.
In My Two Favorite People, Jake feels overwhelmed at not having enough time for Finn and his girlfriend, Lady Rainicorn, so he tries to get them to hang out more. In Memories of Boom Boom Mountain, Finn pledges to help everyone in need, but this proves more difficult than imagined. Written by unknown
The story starts in the midst of a thunderstorm outside Finn and Jake's tree fort. Jake is telling a spooky tale about vampires, and Finn is shaken. Finn thinks he hears something at the window, and is afraid it might be vampires, but then Jake admits that story was made up. All of a sudden, the window opens, and Marceline the Vampire Queen makes her entrance. She is friendly, but scary, assuring Finn and Jake that she usually only sucks the color red out of things, rather than blood. She entertains Finn and Jake with tales of her adventures. But after that, she claims that the tree fort belongs to her, and kicks out Finn and Jake. The boy and dog go hunting for a new home, but everywhere they look, someone else already lives there. Finally they arrive at a deserted cave, and turn it into a pleasant living space. They throw a cave-warming party, and are having a fine time, when Marceline arrives and claims that the cave is hers too. Finn wants to fight her, but realizes that he ... Written by Barbie Verona
In City of Thieves, Finn enters the City of Thieves with Jake to confront a thief who is believed to have stolen a flower basket from a little girl named Penny. In The Witch's Garden, A witch steals Jake's shape-shifting powers, but his ego makes getting them back very difficult. Written by unknown
In When Wedding Bells Thaw, The Ice King announces that he is engaged and to the shock of Finn and Jake it seems the bride is actually willing. In Freak City, Finn is transformed into a foot by a magic man, and joins forces with a band of misfits to turn back to normal. Written by unknown
In The Duke, Finn and Jake accidentally turns Princess Bubblegum green and bald, and faces a moral quandary - admit to the crime or allow the Duke of Nuts to take the fall. In Donny, Finn and Jake try to reform a bullying ogre, but realize that their good deed has unexpected consequences. Written by unknown
In Rainy Day Daydream, Finn and Jake find themselves stuck indoors thanks to a Knife Storm, only to find Jake's imagination literally runs wild, coming to life and bringing many dangers into the tree house. In What Have You Done?, Princess Bubblegum tells Finn and Jake to capture the Ice King as their prisoner, but face an ethical quandary when they realize he may be innocent. Written by unknown