After a disastrous morning, Fionna can't afford to take Cake to the vet so she seeks help from an unconventional source.

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 & Cake.

Fionna, Cake, and friends fight for their world. Simon battles his demons.