In the distant future, many years after the outcome of the Gum War, two friends named Beth and Shermy recover a rusty old mechanical arm that once belonged to Finn after it is dropped by a Prize Ball Guardian.

Finn and Jake, as ambassadors of the Candy Kingdom, travel to a powerful new city-state in a last ditch effort to stave off war.

Searching for answers on Mars, Finn and Jermaine discover that they must first survive a cunning Martian mental trap.

In order to fulfill his grand destiny, Jake is spirited away by a strangely familiar shape-shifting alien.

Finn's latest literary work meets with only derision, so he sets out to prove all the naysayers wrong.

Kim Kil Whan tasks Jake and Finn to investigate reports of a haunting in one of Kim Kil Whan's properties "Joshua and Margaret Investigations" since something in there traumatized his top employee Renny Hamlond and does not pay any rent for inhabiting the place.

After helping with the creation of a new sword, Hunson Abadeer comes back to try and regain his daughter's love.

When an old flame comes calling on urgent business, Tree Trunks reconsiders both her wild past and her tranquil present.

A mysterious knight crashes Finn's birthday bash and presents him with a dangerous gift.

A long lost artifact causes Princess Bubblegum to harken back to the creation of the Candy Kingdom.

When Flame Princess is coaxed into a high stakes battle against the indomitable Son of Rap Bear, Finn must help her search for a new strategy.

BMO and Ice King hit the road as door to door salesmen and stumble upon an irresistible opportunity.

A fierce creature is terrorizing the Candy Kingdom but before Finn can slay the beast, he must first overcome a guilty conscience.