Fionna and Cake – with the help of the former Ice King, Simon Petrikov - embark on a multiverse-hopping adventure and journey of self-discovery. All the while a powerful new antagonist determined to track them down and erase them from existence, lurks in the shadows.
Simon battles his demons as Fionna, Cake and friends fight for their world.
While Simon experiences a cosmic detour, doom closes in on Fionna and Cake.
Stranded in a desolate wasteland, Fionna, Cake and Simon must 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.
After landing in the Winter Kingdom, Fionna and Simon discover a possible solution to their problems. Marshall Lee helps Gary with a baking project.
Pursued by a powerful enemy, Fionna, Cake and Simon venture through a lawless world in search of a magical artifact.
Fionna, Cake, and Simon converge in a strange place to discover how they're connected.
While Cake crash-lands in a fantastic new world, Fionna continues her search after witnessing something impossible.
Struggling to find his place as a human in a magical world, Simon considers taking desperate measures before embarking on a quest with an old friend.
After a disastrous morning, a down-on-her luck Fionna seeks treatment for an out-of-sorts Cake.