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Finn and Jake contend with a mysterious, but familiar, new being.
Do No Harm
Finn makes amends at the Candy Hospital while Jake tries to connect with their unexpected houseguest.
Kim Kil Whan is worried about his daughter's future and asks Jake for some parental advice.
An otherworldly encounter puts Tree Trunks on the trail of a conspiracy in the Candy Kingdom.
Horse and Ball
When disaster befalls James Baxter, it's up to Finn and Jake to help him pick up the pieces.
Jelly Beans Have Power
Princess Bubblegum's scientific mind must wrestle with her Elemental magic potential when she's faced with a Crystal Entity.
Islands, Part 1: The Invitation
A mysterious craft invades Ooo and Finn believes it may hold the secrets to his past.
Islands, Part 2: Whipple the Happy Dragon
Finn, Jake, and Susan set sail on a ocean voyage full of wonders and danger.
Islands, Part 3: Mysterious Island
After waking up alone and shipwrecked, Finn investigates a bizarre island in search of his friends.
Islands, Part 4: Imaginary Resources
Finn and Jake travel to a land where reality has been redesigned and improved.
Islands, Part 5: Hide and Seek
While exploring some futuristic ruins, Susan sees glimpses of a familiar girl.
Islands, Part 6: Min and Marty
An unexpected revelation from Susan leads Finn closer to answers about his past.
Islands, Part 7: Helpers
Finn and his friends journey to a last refuge called Founders Island.
Islands, Part 8: The Light Cloud
Finn confronts the power behind Founders Island, but will he ever return home to Ooo?
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