S4E1 - Hot to the Touch
Finn develops a crush on Flame Princess and tries to get to know her, which proves difficult due to her destructive power.
S4E2 - Five Short Graybles
Follow as 5 stories intertwine together, can you find the connection?
S4E3 - Web Weirdos
When Finn gets trapped in a giant spider web, he ends up playing marriage counselor to a couple of grumpy arachnids.
S4E4 - Dream of Love
Tree Trunks is courted by an oinking suitor, but much to Jake’s dismay, this interferes with her baking habits.
S4E5 - Return to the Nightosphere
Marceline’s dad banishes Finn and Jake to the Nightosphere, and it stinks. Literally.
S4E6 - Daddy's Little Monster
Finn and Jake attempt to rescue Marceline and find out what's making her behave so strangely.
S4E7 - In Your Footsteps
A bear cozies up to the guys, but his true intentions may be hidden.
S4E8 - Hug Wolf
Finn goes through a transformation after a run-in with a hug wolf.
S4E9 - Princess Monster Wife
Princesses lose body parts under mysterious circumstances.
S4E10 - Goliad
Battling with her new realization of her own mortality, in a sleep deprived state Princess bubblegum creates her own heir to the throne. After meeting the heir, Finn and Jake decide to teach her the ways of the world.
S4E11 - Beyond This Earthly Realm
When Finn finds a porcelain lamb, it transports him into the spirit world and only the Ice King can help get him out.
S4E12 - Gotcha!
In order to do research for her tell-all memoir about men, Lumpy Space Princess goes undercover working for Finn and Jake.
S4E13 - Princess Cookie
Finn and Jake are called to solve a Candy Kingdom hostage crisis when a rogue cookie takes over.
S4E14 - Card Wars
Finn and Jake play Card Quest, an epic game.
S4E15 - Sons of Mars
Magic man has most of his power taken from him by his brother, in a fit of desperation, he swaps the way Jake and Himself look.
Magic Mans brother takes Jake to Mars for punishment,
S4E16 - Burning Low
Princess Bubblegum may be jealous when Finn start hanging out with Flame Princess.
S4E17 - BMO Noire
BMO tries to find Finn's sock.
S4E18 - King Worm
Finn has a vivid dream that may be more than it seems.
S4E19 - Lady & Peebles
Princess Bubblegum and Lady Rainicorn look for Finn and Jake, who are missing after a run-in with the Ice King.
S4E20 - You Made Me!
When a creepy sleep-peeping Lemongrab upsets Princess Bubblegum with his creepy ways, Finn and Jake need to tend to some issues in the Outer Realm.
S4E21 - Who Would Win?
The guys challenge a monster to a fight but end up battling each other.
S4E22 - Ignition Point
Finn and Jake sneak into the Fire Kingdom to retrieve Fire Princess' scented candles and overhear a plot to assassinate the king.
S4E23 - The Hard Easy
Frog People seek protection from an evil lizard who's attacking their swamp.
S4E24 - Reign of Gunters
The Gunters cause chaos in Ooo.
S4E25 - I Remember You
The Ice King and Marceline bond over song and memories.
S4E26 - The Lich
A visit from the Lich King sheds light on Ooo's secrets.
