1Broke His Crown
When Ice King's magic crown goes haywire, Marceline and Princess Bubblegum resort to extreme measures to help him.
2Don't Look
Finn unearths a treasure with a terrible price at the top of Dead Mountain.
3Beyond 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.
4Lady Rainicorn of the Crystal Dimension
Jake's son finds a hidden box and draws attention from a Rainicorn.
5I am a Sword
When Finn begins having nightmares about his missing Finn Sword, he wonders if they are real.
6Bun Bun
Finn brings a special delivery for Cinnamon Bun to the Fire Kingdom but it may come with a dangerous cost.
7Normal Man
Normal Man asks for Finn and Jake's help to rescue his brother.
8Elemental
Ice King digs up an item buried underneath the Ice Kingdom.
9Five Short Tables
Fionna and Cake go on a cooking adventure to push Cake's art to an all-new level.
10The Music Hole
Finn hears a mysterious song while judging a Battle of the Bands.
11Daddy-Daughter Card Wars
Jake and his daughter Charlie fight to restore Jake's honor and win a super-secret underground Card Wars tourney.
12Preboot
While searching for old human artifacts, Jake, Finn, and Susan Strong meet Tiffany, who is employed by a mysterious Doctor Gross.
13Reboot
After Susan Strong's chip is activated, she goes rogue and attacks Finn.
14Two Swords
Finn and Jake puzzle over the nature of a mysterious newcomer.
15Do No Harm
Doctor Princess thrusts a great responsibility upon Finn. Jake goes adventuring with a new friend.
16Wheels
Kim Kil Whan is worried about his daughter's future and asks Jake for some parental advice.
17High Strangeness
An otherworldly encounter puts Tree Trunks on the trail of a conspiracy in the Candy Kingdom.
18Horse and Ball
When disaster befalls James Baxter, it’s up to Finn and Jake to help him pick up the pieces.
19Jelly Beans Have Power
Princess Bubblegum's scientific mind must wrestle with her Elemental magic potential when she's faced with a Crystal Entity.
20Islands: The Invitation (1)
A mysterious craft invades Ooo and Finn believes it may hold the secrets to his past.
21Islands: Whipple the Happy Dragon (2)
Finn, Jake, and Susan set sail on a ocean voyage full of wonders and danger.
22Islands: Mysterious Island (3)
After waking up alone and shipwrecked, Finn investigates a bizarre island in search of his friends.
23Islands: Imaginary Resources (4)
Finn and Jake travel to a land where reality has been redesigned and improved.
24Islands: Hide and Seek (5)
While exploring some futuristic ruins, Susan sees glimpses of a familiar girl.
25Islands: Min & Marty (6)
An unexpected revelation from Susan leads Finn closer to answers about his past.
26Islands: Helpers (7)
Finn and his friends journey to a last refuge called Founders Island.
27Islands: The Light Cloud (8)
Finn confronts the power behind Founders Island, but will he ever return home to Ooo?