E1 - Broke His Crown

Aired: March 26, 2016

When Ice King's magic crown goes haywire, Marceline and Princess Bubblegum resort to extreme measures to help him.

E2 - Don't Look

Aired: April 02, 2016

Finn unearths a treasure with a terrible price at the top of Dead Mountain.

E3 - Beyond the Grotto

Aired: April 09, 2016

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.

E4 - Lady Rainicorn of the Crystal Dimension

Aired: April 16, 2016

Jake's son finds a hidden box and draws attention from a Rainicorn.

E5 - I am a Sword

Aired: April 23, 2016

When Finn begins having nightmares about his missing Finn Sword, he wonders if they are real.

E6 - Bun Bun

Aired: May 05, 2016

Finn brings a special delivery for Cinnamon Bun to the Fire Kingdom but it may come with a dangerous cost.

E7 - Normal Man

Aired: May 12, 2016

Normal Man asks for Finn and Jake's help to rescue his brother.

E8 - Elemental

Aired: May 19, 2016

Ice King digs up an item buried underneath the Ice Kingdom.

E9 - Five Short Tables

Aired: May 26, 2016

Fionna and Cake go on a cooking adventure to push Cake's art to an all-new level.

E10 - The Music Hole

Aired: June 23, 2016

Finn hears a mysterious song while judging a Battle of the Bands.

E11 - Daddy-Daughter Card Wars

Aired: July 07, 2016

Jake and his daughter Charlie fight to restore Jake's honor and win a super-secret underground Card Wars tourney.

E12 - Preboot

Aired: November 19, 2016

While searching for old human artifacts, Jake, Finn, and Susan Strong meet Tiffany, who is employed by a mysterious Doctor Gross.

E13 - Reboot

Aired: November 19, 2016

After Susan Strong's chip is activated, she goes rogue and attacks Finn.

E14 - Two Swords

Aired: January 23, 2017

Finn and Jake puzzle over the nature of a mysterious newcomer.

E15 - Do No Harm

Aired: January 23, 2017

Doctor Princess thrusts a great responsibility upon Finn. Jake goes adventuring with a new friend.

E16 - Wheels

Aired: January 24, 2017

Kim Kil Whan is worried about his daughter's future and asks Jake for some parental advice.

E17 - High Strangeness

Aired: January 25, 2017

An otherworldly encounter puts Tree Trunks on the trail of a conspiracy in the Candy Kingdom.

E18 - Horse and Ball

Aired: January 26, 2017

When disaster befalls James Baxter, it’s up to Finn and Jake to help him pick up the pieces.

E19 - Jelly Beans Have Power

Aired: January 27, 2017

Princess Bubblegum's scientific mind must wrestle with her Elemental magic potential when she's faced with a Crystal Entity.

E20 - Islands: The Invitation (1)

Aired: January 30, 2017

A mysterious craft invades Ooo and Finn believes it may hold the secrets to his past.

E21 - Islands: Whipple the Happy Dragon (2)

Aired: January 30, 2017

Finn, Jake, and Susan set sail on a ocean voyage full of wonders and danger.

E22 - Islands: Mysterious Island (3)

Aired: January 31, 2017

After waking up alone and shipwrecked, Finn investigates a bizarre island in search of his friends.

E23 - Islands: Imaginary Resources (4)

Aired: January 31, 2017

Finn and Jake travel to a land where reality has been redesigned and improved.

E24 - Islands: Hide and Seek (5)

Aired: February 01, 2017

While exploring some futuristic ruins, Susan sees glimpses of a familiar girl.

E25 - Islands: Min & Marty (6)

Aired: February 01, 2017

An unexpected revelation from Susan leads Finn closer to answers about his past.

E26 - Islands: Helpers (7)

Aired: February 02, 2017

Finn and his friends journey to a last refuge called Founders Island.

E27 - Islands: The Light Cloud (8)

Aired: February 02, 2017

Finn confronts the power behind Founders Island, but will he ever return home to Ooo?