After a disastrous morning, Fionna can't afford to take Cake to the vet, so se seeks help from an unconventional source.
Former Ice King Simon struggles to be a regular human in a magical world and considers taking desperate measures.
Cake crash lands in a fantastic new world. Fionna continues her search after witnessing something impossible.
Fionna, Cake, and Simon converge in a strange place to discover how they're connected.
Pursued by a powerful enemy, Fionna, Cake, and Simon venture through a lawless world in search of a magical artifact.
Fionna and Simon discover their best selves, and a possible solution to all their problems, in a wintery kingdom. Marshall Lee helps Gary with a baking project.
Cake is recruited by a band of skilled vampire hunters. Gary and Marshall Lee attend a black-tie party.
Stranded in a desolate land, Fionna, Cake, and Simon are stranded and resort to desperate measures to escape.
Simon finds his mind transported across time and space while danger closes in on Fionna and Cake.
Fionna, Cake, and friends fight for their world. Simon battles his demons.
After saving their world, Fionna and Cake try to find where they fit in. Huntress Wizard makes a disturbing discovery and turns to Simon for help.
Fionna and Cake attempt to solve a heated debate with force. A desperate Huntress Wizard contends with a secret order of Wizards.
Given just a week to save the lot, Fionna puts together a fundraiser and revisits an old flame. As a nervous Cake goes on a first date, Huntress Wizard struggles in a magic-free world. Back in Ooo, PB and Marceline face down a hoard of eager Princesses.
While Cake explores a career in television, a heartbroken Fionna takes a walk down memory lane, and Huntress Wizard searches for a way home.
After several setbacks, Fionna's quest to save the lot takes a costly turn, while Huntress and Cake begrudgingly join forces to explore an enigmatic vision of the future.
During a night of strange visions, Huntress enlists Finn's allies to save him from an impending Croak Dream.
After a VIP goes missing, Fionna turns to magic and an unlikely ally for help, while Huntress conducts her own search.
After Fionna and Huntress are captured, Cake tries to pull off Boys Night and save the lot on her own. Meanwhile, PB, Simon, and Marcie venture into the forest.
After plunging into the unknown, Huntress faces off with an old foe, Fionna contends with painful memories, and Cake confronts her inner truth with help from the Karmic Worm.
As time runs out for a wounded hero, PB turns to science for solutions, while Huntress fights to make her way back to Ooo to stop her. Later, Fionna seeks to undo a disastrous decision.
