Fionna, Cake, and friends fight for their world. Simon battles his demons.
Simon finds his mind transported across time and space while danger closes in on Fionna & Cake.
Stranded in a desolate land, Fionna, Cake, and Simon are stranded and resort to desperate measures to escape.
Cake is recruited by a band of skilled vampire hunters. Gary and Marshall Lee attend a black-tie party.
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.
Fionna, Cake, and Simon converge in a strange place to discover how they’re connected.