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E1 Broke His Crown
When Ice King's magic crown goes haywire, Marceline and Princess Bubblegum resort to extreme measures to help him.
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E2 Don't Look
Finn unearths a treasure with a terrible price at the top of Dead Mountain.
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E3 Beyond the Grotto
Finn and Jake follow their Sea Lard into the pond in front of their home, and in doing so, are led to a strange new world.
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E4 Lady Rainicorn of the Crystal Dimension
Jake's son finds a hidden box and draws attention from a Rainicorn.
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E5 I am a Sword
When Finn begins having nightmares about his missing Finn Sword, he wonders if they are real.
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E6 Bun Bun
Finn brings a special delivery for Cinnamon Bun to the Fire Kingdom but it may come with a dangerous cost.
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E7 Normal Man
Normal Man asks for Finn and Jake's help to rescue his brother.
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E8 Elemental
Ice King digs up an item buried underneath the Ice Kingdom.
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E9 Five Short Tables
Fionna and Cake go on a cooking adventure to push Cake's art to an all-new level.
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E10 The Music Hole
Finn hears a mysterious song while judging a Battle of the Bands.
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E11 Daddy-Daughter Card Wars
Jake and his daughter Charlie fight to restore Jake's honor and win a super-secret underground Card Wars tourney.
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E12 Preboot
While searching for old human artifacts, Jake, Finn, and Susan Strong meet Tiffany, who is employed by a mysterious Doctor Gross.
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E13 Reboot
After Susan Strong's chip is activated, she goes rogue and attacks Finn.
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E14 Two Swords
Finn and Jake puzzle over the nature of a mysterious newcomer.
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E15 Do No Harm
Doctor Princess thrusts a great responsibility upon Finn. Jake goes adventuring with a new friend.
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E16 Wheels
Kim Kil Whan is worried about his daughter's future and asks Jake for some parental advice.
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E17 High Strangeness
An otherworldly encounter puts Tree Trunks on the trail of a conspiracy in the Candy Kingdom.
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E18 Horse and Ball
When disaster befalls James Baxter, it’s up to Finn and Jake to help him pick up the pieces.
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E19 Jelly Beans Have Power
Princess Bubblegum's scientific mind must wrestle with her Elemental magic potential when she's faced with a Crystal Entity.
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E20 Islands: The Invitation (1)
A mysterious craft invades Ooo and Finn believes it may hold the secrets to his past.
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E21 Islands: Whipple the Happy Dragon (2)
Finn, Jake, and Susan set sail on a ocean voyage full of wonders and danger.
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E22 Islands: Mysterious Island (3)
After waking up alone and shipwrecked, Finn investigates a bizarre island in search of his friends.
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E23 Islands: Imaginary Resources (4)
Finn and Jake travel to a land where reality has been redesigned and improved.
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E24 Islands: Hide and Seek (5)
While exploring some futuristic ruins, Susan sees glimpses of a familiar girl.
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E25 Islands: Min & Marty (6)
An unexpected revelation from Susan leads Finn closer to answers about his past.
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E26 Islands: Helpers (7)
Finn and his friends journey to a last refuge called Founders Island.
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E27 Islands: The Light Cloud (8)
Finn confronts the power behind Founders Island, but will he ever return home to Ooo?