Episode 1
When Ice King's magic crown goes haywire, Marceline and Princess Bubblegum resort to extreme measures to help him.
Episode 2
Finn unearths a treasure with a terrible price at the top of Dead Mountain.
Episode 3
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.
Episode 4
Jake's son finds a hidden box and draws attention from a Rainicorn.
Episode 5
When Finn begins having nightmares about his missing Finn Sword, he wonders if they are real.
Episode 6
Finn brings a special delivery for Cinnamon Bun to the Fire Kingdom but it may come with a dangerous cost.
Episode 7
Normal Man asks for Finn and Jake's help to rescue his brother.
Episode 8
Ice King digs up an item buried underneath the Ice Kingdom.
Episode 9
Fionna and Cake go on a cooking adventure to push Cake's art to an all-new level.
Episode 10
Finn hears a mysterious song while judging a Battle of the Bands.
Episode 11
Jake and his daughter Charlie fight to restore Jake's honor and win a super-secret underground Card Wars tourney.
Episode 12
While searching for old human artifacts, Jake, Finn, and Susan Strong meet Tiffany, who is employed by a mysterious Doctor Gross.
Episode 13
After Susan Strong's chip is activated, she goes rogue and attacks Finn.
Episode 14
Finn and Jake puzzle over the nature of a mysterious newcomer.
Episode 15
Doctor Princess thrusts a great responsibility upon Finn. Jake goes adventuring with a new friend.
Episode 16
Kim Kil Whan is worried about his daughter's future and asks Jake for some parental advice.
Episode 17
An otherworldly encounter puts Tree Trunks on the trail of a conspiracy in the Candy Kingdom.
Episode 18
When disaster befalls James Baxter, it’s up to Finn and Jake to help him pick up the pieces.
Episode 19
Princess Bubblegum's scientific mind must wrestle with her Elemental magic potential when she's faced with a Crystal Entity.
Episode 20
A mysterious craft invades Ooo and Finn believes it may hold the secrets to his past.
Episode 21
Finn, Jake, and Susan set sail on a ocean voyage full of wonders and danger.
Episode 22
After waking up alone and shipwrecked, Finn investigates a bizarre island in search of his friends.
Episode 23
Finn and Jake travel to a land where reality has been redesigned and improved.
Episode 24
While exploring some futuristic ruins, Susan sees glimpses of a familiar girl.
Episode 25
An unexpected revelation from Susan leads Finn closer to answers about his past.
Episode 26
Finn and his friends journey to a last refuge called Founders Island.
Episode 27
Finn confronts the power behind Founders Island, but will he ever return home to Ooo?
