A 12-year-old boy and his best friend, wise 28-year-old dog with magical powers, go on a series of surreal adventures with each other in a remote future.

Living in the post-apocalyptic land of Ooo, Finn, a 14-year-old boy, and his magical dog, Jake, embark on a series of missions to prove themselves as virtuous adventurers.

Storyline
Prof. Simon Petrikoff is driven insane by an ancient magic crown the magic, which is the only thing that keeps him and his adopted demon daughter marceline alive after the human world is destroyed. 1000 years later a new world is formed a kingdom of candy run by a harsh ruler Bonnibel bubblegum and monsters and demons roam the lands. Finn and Jake two adventurers become great friends with Marceline, Bubblegum and Simon and they uncover secrets about their past as Finn (the last human) searches for that of his own. As the evil Lich resurfaces, Simon’s time displaced fiance Betty goes insane and Finn’s sentient grass arm becomes a conflicted volitle plant clone. Finn, Jake, Simon, Marceline and Bubblegum must do whatever they can to save the world from another apocalypse when Bonnibel’s evil uncle declares war.

Top cast
John DiMaggio … as Jake
Jeremy Shada … as Finn
Tom Kenny … as Ice King
Hynden Walch … as Princess Bubblegum
Niki Yang … as BMO
Pendleton Ward … as Lumpy Space Princess
Dee Bradley Baker … as Cinnamon Bun
Maria Bamford … as Additional Voices
Steve Little … as Peppermint Butler
Olivia Olson … as Marceline
Kent Osborne … as Joshua
Cole Sanchez … as Additional Voices
Polly Lou Livingston … as Tree Trunks
Jessica DiCicco … as Flame Princess
Andy Milonakis … as N.E.P.T.R.
Jackie Buscarino … as Susan Strong
Tom Herpich … as Mr. Fox
Justin Roiland … as Earl of Lemongrab