Episodes
1. Broke His Crown
7.4
March 26, 2016
11 min
When Ice King's magic crown goes haywire, Marceline and Princess Bubblegum resort to extreme measures to help him.
2. Don't Look
7.5
April 2, 2016
11 min
Finn unearths a treasure with a terrible price at the top of Dead Mountain.
3. Beyond the Grotto
6.9
April 9, 2016
11 min
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.
4. Lady Rainicorn of the Crystal Dimension
7.1
April 16, 2016
11 min
Jake's son finds a hidden box and draws attention from a Rainicorn.
Guest Stars:
Bert Youn, Laura Silverman, Henry Rollins, Fred Stoller, Dan Mintz
5. I am a Sword
6.9
April 23, 2016
11 min
When Finn begins having nightmares about his missing Finn Sword, he wonders if they are real.
6. Bun Bun
7.0
May 5, 2016
11 min
Finn brings a special delivery for Cinnamon Bun to the Fire Kingdom but it may come with a dangerous cost.
7. Normal Man
7.0
May 12, 2016
11 min
Normal Man asks for Finn and Jake's help to rescue his brother.
Guest Stars:
Justin Roiland
8. Elemental
7.6
May 19, 2016
11 min
Ice King digs up an item buried underneath the Ice Kingdom.
Guest Stars:
Lauren Lapkus
9. Five Short Tables
6.6
May 26, 2016
11 min
Fionna and Cake go on a cooking adventure to push Cake's art to an all-new level.
Guest Stars:
Emo Philips, Neil Patrick Harris, Hannibal Buress, Donald Glover, Crispin Freeman
10. The Music Hole
7.9
June 23, 2016
11 min
Finn hears a mysterious song while judging a Battle of the Bands.
11. Daddy-Daughter Card Wars
7.4
July 7, 2016
11 min
Jake and his daughter Charlie fight to restore Jake's honor and win a super-secret underground Card Wars tourney.
12. Preboot
7.0
November 19, 2016
11 min
While searching for old human artifacts, Jake, Finn, and Susan Strong meet Tiffany, who is employed by a mysterious Doctor Gross.
13. Reboot
7.2
November 19, 2016
11 min
After Susan Strong's chip is activated, she goes rogue and attacks Finn.
14. Two Swords
7.4
January 23, 2017
11 min
Finn and Jake puzzle over the nature of a mysterious newcomer.
15. Do No Harm
7.4
January 23, 2017
11 min
Doctor Princess thrusts a great responsibility upon Finn. Jake goes adventuring with a new friend.
16. Wheels
6.9
January 24, 2017
11 min
Kim Kil Whan is worried about his daughter's future and asks Jake for some parental advice.
17. High Strangeness
6.6
January 25, 2017
11 min
An otherworldly encounter puts Tree Trunks on the trail of a conspiracy in the Candy Kingdom.
18. Horse and Ball
7.0
January 26, 2017
11 min
When disaster befalls James Baxter, it’s up to Finn and Jake to help him pick up the pieces.
19. Jelly Beans Have Power
6.8
January 27, 2017
11 min
Princess Bubblegum's scientific mind must wrestle with her Elemental magic potential when she's faced with a Crystal Entity.
Guest Stars:
Alan Tudyk, Lauren Lapkus
20. Islands: The Invitation (1)
7.3
January 30, 2017
11 min
A mysterious craft invades Ooo and Finn believes it may hold the secrets to his past.
21. Islands: Whipple the Happy Dragon (2)
7.2
January 30, 2017
11 min
Finn, Jake, and Susan set sail on a ocean voyage full of wonders and danger.
22. Islands: Mysterious Island (3)
7.4
January 31, 2017
11 min
After waking up alone and shipwrecked, Finn investigates a bizarre island in search of his friends.
23. Islands: Imaginary Resources (4)
7.6
January 31, 2017
11 min
Finn and Jake travel to a land where reality has been redesigned and improved.
24. Islands: Hide and Seek (5)
7.8
February 1, 2017
11 min
While exploring some futuristic ruins, Susan sees glimpses of a familiar girl.
Guest Stars:
Livvy Stubenrauch
25. Islands: Min & Marty (6)
8.0
February 1, 2017
11 min
An unexpected revelation from Susan leads Finn closer to answers about his past.
Guest Stars:
Sharon Horgan, Stephen Root, Laraine Newman, Kent Osborne, Lennon Parham
26. Islands: Helpers (7)
8.1
February 2, 2017
11 min
Finn and his friends journey to a last refuge called Founders Island.
Guest Stars:
Sharon Horgan
