Finn and Fern's carefree visit to some old ruins turns disastrous.

While safeguarding a frightened Sweet P, Finn is led into a confrontation with an old foe.

An unexpected critic shows up at Ice King's latest Fionna and Cake book reading.

BMO and Marceline swap stories about their recent adventures. Features guest appearance byRegular Show's JG Quintel and guest animation by Lindsay and Alex Small-Butera.

As Jake goes through some personal changes, he's haunted by a mysterious dream encounter with his brother Jermaine.

After saving Finn the human during a battle between the candy kingdom and the fire kingdom it is discovered that LSP is made of anti-elemental magic and restores Ooo to it's former state.

After going to the Fire Kingdom, Finn becomes taken over by fire. LSP has to save him before he destroys the candy kingdom.

After gathering the Slime jewel, Finn and LSP go to the Fire Kingdom, to gather the Flame Jewel. Everything has turned even hotter than before.

In order to save Ooo, Finn and Jake must gather the four elemental gems. They go to the Slime Kingdom and have to gather Slime Princess's gem.

After taking a nap, Finn and Jake get separated from Betty and the Ice King. They need to get back and Jake needs to go pee.

Finn, Jake and Ice King travel to the Ice World and break through the large ice dome covering the center of the land.

Ice King weaves a tale filled with drama, romance and men's fashion.

Finn, Jake, and BMO return from their voyage to a radically changed Ooo.

During the journey home from their sea-faring adventure; Finn, Jake, and BMO encounter a mysterious force that enters their dreams.