Finn and Princess Bubblegum must protect the Candy Kingdom from a horde of candy zombies they accidentally created.
Finn must travel to Lumpy Space to find a cure that will save Jake, who was accidentally bitten by Lumpy Space Princess at a tea party.
When the Ice King kidnaps a number of princesses he sees as potential brides, Finn and Jake team with the prisoners to set everybody free.
Finn and Jake join Tree Trunks in search for the rare Crystal Gem Apple, but question whether Tree Trunks has what it takes to adventure.
Finn and Jake go on a quest for a magical book that would prove them worthy of being righteous heroes.
A jiggly creature attracted by Finn's auto-tuned singing follows Finn and Jake home but soon feels ill effects of separation from its family.
When a Heart Guy named Ricardio comes to Candy Kingdom, Finn gets really jealous and finds a way to get him out of the Land of Ooo.
When Finn and Jake discover a group of businessmen frozen in an iceberg, the duo thaws them and hires them to help with their adventures.
Jake's plan to spend time with both Lady Rainicorn and Finn backfires.
Finn reflects on an upsetting experience in his past and pledges to help everyone in town, but this proves more difficult than imagined.
Finn and Jake temporarily get magic powers from an evil wizard, but are tricked into helping stop a comet.
Finn and Jake search the land of Ooo for a new home after Marceline claims the duo's treehouse as her own.
Finn and Jake go off to face a thief king who has been stealing from little girls.
Finn and Jake consider breaking up after a witch strips Jake of his powers.
Finn brings a pie-throwing robot to life, but the machine begins to long for a more fulfilling existence.
Finn struggles to overcome his fear of the ocean.
The Ice King gets married but not before he convinces Finn and Jake to throw him a manlorette party.
Finn's headstrong decision to explore a dungeon in defiance of Jake's warnings leads to a dangerous escapade.
Finn must tell the truth when he accidentally turns Princess Bubblegum bald and green and blames the Duke of Nuts.
After being transformed into a foot, Finn joins forces with a band of misfits to make things right.
Finn and Jake try to help an obnoxious grass ogre named Donny develop better social skills, only to find out Donny's jerky behavior protects the house people from the why-wolves, which eat the house people.
After seeing Marceline the vampire queen torment an elderly henchman, Finn steps in to be her new henchman, doing whatever he is told to do.
Stuck inside the treehouse due to a knife storm, Finn and Jake use their imagination to pass the time.
Finn and Jake capture the Ice King as their prisoner, but feel guilty when unable to explain the wrongs he committed.
The great warrior Billy inspires Finn and Jake to practice nonviolence, but the duo finds it difficult to resist old ways.
When the Fluffy People's gold has been devoured by a culprit only known as "The Gut Grinder", Finn and Jake team up to find him with his tracks.
Marceline's evil father goes on a soul-sucking rampage after Finn and Marceline accidentally release him from the Nightosphere.
Finn and Jake try to rid themselves of a weird horse that creeps them out.
Finn and Jake are excited to meet the Nice King who has come to Ooo. They soon realize that he looks suspiciously like someone else they know; the Ice King.
When Finn gets a splinter on his finger, he wants to get the best armor. In order to receive it, he must go on a quest to get the Magical Armor of Zelderon and survive one embarrassing situation after another.
Jake is sick and demands to hear a good story full of romance, fighting and suspense.
Finn and Jake agree to help a snail named Snorlock find a girlfriend.
Finn is captured by gnomes who want to use his energy to power their infernal machines, and it's up to Jake to stay focused and rescue him.
Jake takes a pledge of nonviolence just before Finn is kidnapped by outlaws from the crystalline dimension.
Finn choses to cross the Desert of Doom to deliver the royal tarts to the annual back rubbing ceremony.
A tree witch demands a lock of princess hair or else Jake will be sucked into her bottomless bottom.
Whilst the Ice King goes out to take Gunther to the hospital, Finn and Jake decide to sneak inside his lair and flex their ninja skills.
Jake's relationship with Lady Rainicorn is in danger when he promises to meet with her parents, as both species had a long history of war with each other. However, thanks to Jake's shape-shifting powers, they mistake the dog as one of their own, but for how long?
Finn and Jake discover a box containing three beans. Planting them causes three pods to grow. Two of them are good and one is evil, but which is which?
After defeating a evil king of goblins, Finn finds himself crowned as their new king. Unfortunately, he's unable to do anything for them due to the rules of the previous king including defending the goblins from the previous king.
Finn has to give a speech at Princess Bubblegum's science barbecue and seeks a quick fix to make himself smarter.
Finn and Jake get sucked into one of BMO's games and they have to defeat all three of his bosses.
After killing Princess Bubblegum's plant when left to take care of it, Finn and Jake make a trip to the Land of the Dead in order to get it's soul back.
Finn is excited to discover what appears to be a tribe of humans living underground near the Candy Kingdom, but gets more than he expected when he tries to teach one of them about the surface world.
Wanting to surprise Finn on his birthday, Jake takes Finn on a train, where they get wrapped up in a murder mystery.
Marceline and Jake give Finn advice so he can ask Princess Bubblegum to see a movie with him.
In order to cure the stomach ache of a giant, Finn and Jake must break up a party happening in his belly.
On a mission to save soldiers of the Hot Dog Princess, Finn and Jake go inside a massive maze where wishes can be granted and where Jake's stretching powers are pushed to their limits.
After discovering government warnings prior to movies for their film club, Finn and Jake decide to make their own, but get into a fight over the direction of their film.
When the Lich is accidentally freed from its amber prison in Princess Bubblegum's Castle, Finn and Jake must head forth to stop it from regaining its full power, all while being pestered by the Ice King to give him their blessing to marry Princess Bubblegum.
Princess Bubblegum recovers from being dropped in the Well of Power by the Ice King; however, she is altered and her condition leads to an unlikely final showdown with one of the greatest evils in order to save all life in Ooo.
Marceline plays a prank on Finn and Jake by making them believe they're vampires, but it goes too far and escalates when they're manipulated by her ghost friends.
Finn and Jake must defend their home from the Cuties, a tiny race who believe themselves to be evil, destructive invaders.
The duo choose to partake in gladiatorial combat against the Fight King's ghost warriors, but Finn succumbs to bloodlust while Jake becomes obsessed in keeping a cool morale.
Finn and Jake enter Marceline's mind to awaken her from a sleep spell she had cast on herself, without knowing that they are being tricked by a person from her past.
The grounded Ice King hires a fire-manipulating hitman to attack Finn and Jake, without realizing the potentially deadly consequences.
The Earl of Lemongrab takes over the Candy Kingdom due to Princess Bubblegum's age regression, forcing her and Finn to try and get rid of him even if it means a life-altering decision.
The king and queen of Lumpy Space ask Finn and Jake to bring their daughter back home. At the same time, they attempt to stop a "monster" from destroying a village.
Finn and Jake are literally unable to move and are at the mercy of the Ice King.
Finn and Jake enter a competition for wizards in disguise so they can prevent Ice King from winning the grand prize: a kiss from Princess Bubblegum.
In this gender-swapped episode, Fionna and Cake must battle the evil Ice Queen.
Finn and his friends must come together as a genuine band in order to open the gate of the Door Lord and get back their taken items.
When Tree Trunks's apples go missing, she, Finn and Jake descend into the dark side of the Candy Kingdom in order to find the thief.
Finn and Jake receive an invitation to a masquerade dinner. It turns into a whodunit as guests start to meet their demise.
When another plague of Candy Zombies arises and Princess Bubblegum is among the undead, Finn and his friends are in a race against time to figure out how to stop it...without making things even worse!
Susan Strong asks Finn and Jake to help fight off the Glub Glubs in the sewers below to regain her people's home in Beautopia.
Finn awakens after an accident to find the Candy Kingdom citizens mysteriously gone and Jake acting crazier than usual.
Finn and Jake take on a request to protect Wildberry Princess from an unknown assassin. The assassin turns out to be a tiny cat assassin called Me-Mow, who ends up bribing Jake by poisoning him.
The Snow Golem visits the Fire Kingdom and finds an unlikely follower.
Jake dreams about his death, and Finn takes action when events from the dream start to come true.
Finn and Jake find the Ice King's video diary and have a chance to unearth his secrets.
The Ice King summons an army of snowmen to recover the secret tapes Finn and Jake are watching. They must work against the clock to find out the secrets enclosed within.
Finn and Jake play Cloud Hunt in Marceline's house, but they get trapped in her closet after she comes home.
Library books seek help from Finn and Jake to save them from the evil Moldari.
Cyclops tears may heal Finn and Jake's broken toes.
Finn and Jake play detective and try to solve Ghost Princess' murder.
Jake's dad presents a strange challenge to the guys when he appears to them in a holographic message, telling them about a dungeon he made for them.
Jake embarks on a solo mission to help a broken-hearted Finn.
Finn develops a crush on Flame Princess and tries to get to know her, which proves difficult due to her destructive power.
Follow as 5 stories intertwine together, can you find the connection?
When Finn gets trapped in a giant spider web, he ends up playing marriage counselor to a couple of grumpy arachnids.
Tree Trunks is courted by an oinking suitor, but much to Jake’s dismay, this interferes with her baking habits.
Marceline’s dad banishes Finn and Jake to the Nightosphere, and it stinks. Literally.
Finn and Jake attempt to rescue Marceline and find out what's making her behave so strangely.
A bear cozies up to the guys, but his true intentions may be hidden.
Finn goes through a transformation after a run-in with a hug wolf.
Princesses lose body parts under mysterious circumstances.
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.
When Finn finds a porcelain lamb, it transports him into the spirit world and only the Ice King can help get him out.
In order to do research for her tell-all memoir about men, Lumpy Space Princess goes undercover working for Finn and Jake.
Finn and Jake are called to solve a Candy Kingdom hostage crisis when a rogue cookie takes over.
Finn and Jake play Card Quest, an epic game.
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,
Princess Bubblegum may be jealous when Finn start hanging out with Flame Princess.
BMO tries to find Finn's sock.
Finn has a vivid dream that may be more than it seems.
Princess Bubblegum and Lady Rainicorn look for Finn and Jake, who are missing after a run-in with the Ice King.
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.
The guys challenge a monster to a fight but end up battling each other.
Finn and Jake sneak into the Fire Kingdom to retrieve Fire Princess' scented candles and overhear a plot to assassinate the king.
Frog People seek protection from an evil lizard who's attacking their swamp.
The Gunters cause chaos in Ooo.
The Ice King and Marceline bond over song and memories.
A visit from the Lich King sheds light on Ooo's secrets.
Part 2 of a three-part episode. Finn and Jake chase the Lich through a dimensional portal and meet a wishmaster. After the Lich wishes that humanity never existed, Finn wishes that the Lich never existed.
Part 3 of a three-part episode. Finn and Jake chase the Lich through a dimensional portal and meet a wishmaster. After the Lich wishes that humanity never existed, Finn wishes that the Lich never existed.
A series of short stories all centered around a common theme, hosted by a mysterious man named Cuber from the future.
The guys' game of catch goes awry when their throwing disc is lodged in a large tree.
Finn receives a bag full of miniature versions of his friends.
Jake's a daddy, but being a father and keeping his rainicorn pups from killing themselves or each other is a lot harder than he imagined.
Finn creates an alter ego, Davey. Davey soon begins to take over, and Jake is forced into action to get his old friend back.
Ice King, NEPTR, Tree Trunks, Shelby, and Lemongrab are trapped inside a mysterious dungeon and must work together to free themselves.
Princess Bubblegum sends Finn and Jake to investigate a message of distress from the Earls of Lemongrab.
Finn's hat comes to life and becomes evil after it is touched by a wizard. Finn, Jake, and the wizard track the hat down, and manage to turn the hat good.
The princesses tire of Ice King’s crazy Fionna-and-Cake fan-fiction stories, so Marceline stops by the Ice Kingdom to show him how to properly write a story.
When Flame Princess begins to doubt her evilness, Finn insists she is not evil and takes her on a journey into a dungeon to help her sort out her thoughts.
Xergiok, the former Goblin king who was deposed by Finn and Jake claims to have turned over a new leaf.
A look at what Ice King and Marceline were like 996 years ago.
The Ice King creates a computer virus that will delete everyone in Ooo except for him and Princess Bubblegum. Finn and Jake hack into the universal source code to destroy the virus.
While dwelling on a joke he told to Flame Princess, Finn finds himself trapped in a strange pillow world.
BMO makes his way home after being snatched by an eagle. On its way, BMO meets Bubble and a baby, and the three decide to journey home together.
Ice King gets super jealous when he finds out that he wasn't invited to the Princess Potluck.
Finn and Jake stumble across a horse named James Baxter who has the ability to make sad people feel better.
Finn and Jake make a bet to see who can not talk the longest, and the two use signs to communicate.
Peppermint Butler thinks that Bubblegum is working too hard in her lab, so he tries to get her a suitor.
After another one of his schemes fails, the Ice King decides to give up.
Jake Jr. gets involved with a group of troublemakers, and Jake is forced to reunite his old gang—which includes Tiffany who first appeared in the first season episode "My Two Favorite People"—to rescue his daughter.
A series of short stories with a common theme, hosted by a mysterious man named Cuber from the future. In this entry, Finn and Jake build a time machine. Meanwhile, Princess Bubblegum helps Cinnamon Bun overcome his fear of the dark.
Lumpy Space Princess is robbed, but before she is able to explain the details to Finn and Jake, she faints.
After Starchy comes down with a cold and needs a magic cure, Finn, Jake, and Princess Bubblegum disguise themselves as wizards and sneak into Wizard City.
Jake gets upset with the amount of times that Finn uses his body as a suit of armor, so he convinces Finn to trade places with him.
BMO accidentally deletes his core system files. Finn and Jake disguise themselves as MOs to infiltrate the MO factory and save BMO from a memory wipe.
Marceline tracks the Sky Witch, but finds out that she may need Princess Bubblegum's help.
Flame Princess and the Ice King fight each other, prompting Finn to have an interesting dream.
Finn, Jake and Princess Bubblegum discover a talented mutant named Lemonhope at The Pageant of Mutants. Now they must find a way to free him from the lemongrabs.
Princess Bubblegum subjects Flame Princess to a series of tests to gauge Flame Princess' fiery tendencies. But when there's an emergency at the treehouse, and Princess Bubblegum leaves Cinnamon Bun to watch Flame Princess, her experiment might literally backfire in her face.
Jake crafts the most delicious sandwich ever, but when Magic Man steals it, Finn must defy the laws of space and time to win back Jake's creation.
When Finn starts sleepwalking and dreaming about the Green Lady he filed away in his memory vault, Jake and BMO help him tap into his repressed memories to uncover a secret past. Who is the Green Lady? And how is she connected to Finn?
Slime Princess needs a husband or else she'll lose the Slime Kingdom to her obnoxious sis. Finn steps in to save the day, but first they will need to win a series of Love Games to prove to Slime Princess's dad that they are really in love. This is definitely not what Finn signed up for!
All aboard! Finn and Jake discover a train where every car is a dungeon filled with a new foe for Finn to fight. Jake quickly gets bored and wants to leave, but Finn is having the best time and doesn't want to leave... ever!
Finn meets the Box Prince—a cat with a box on its back—and learns that the Box Kingdom has been taken over by an imposter. Finn must therefore help the real Box Prince reclaim the throne.
Finn, Jake and Marceline are trapped in an underground cavern with no red in sight. If Marceline doesn't feed, like ASAP, she will turn into a vampiric beast and suck out all of Jake's blood! So, Finn heads off to explore the cave and find something red to satiate her until they can be rescued. But time is running out!
Finn finds an old truck, and Jake calls Banana Man to help with the repairs. But when BMO stays up all night working on the truck, he hears on a spooky radio talk show that Princess Bubblegum is a reptilian replicant. Is it just another one of Starchy's crazy conspiracy theories, or a fact?
Sick and tired of babysitting Ice King while the Ice Kingdom is being rebuilt, Finn and Jake call up an old friend to hang out with their annoying houseguest: Abracadaniel.
Finn needs Lady Rainicorn's help to rescue Jake when he is kidnapped by Kee-Oth the Blood Demon.
Finn, Jake, and Princess Bubblegum are attacked by nasty goo monsters in the Desert of Wonders.
Root Beer Guy works a boring job during the day and tries to write mystery stories at night. But his life is about to change when he witnesses Finn and Jake kidnapping Princess Bubblegum! There's only one problem: no one believes Root Beer Guy...
Tree Trunks and Mr. Pig are celebrating the wedding of the year.
Finn and Jake decide it's time for Finn to get a new sword. Finn reluctantly buys a grass sword from a mysterious old man, but the sword turns out to be cursed! And unfortunately for our hero, all sales are final.
Finn practices his sword fighting skills at the candy junkyard, where he meets an old gumball robot named Rattleballs. To Finn's shock, he finds out he's not the master swordsman he thinks he is. What the what?! Finn begs Rattleballs to train him, but he soon discovers his mentor's deep, dark secret... a secret that will ultimately test Finn's loyalty to Princess Bubblegum.
When Flame King breaks out of his prison and takes over the Flame Kingdom again, Flame Princess turns to the one person she believes she can trust... Finn! But will Finn be able to put his feelings for Flame Princess aside long enough to help her reclaim her throne?
After a magic spell backfires, the Ice King reverts back to Simon, and seeks help from Finn, Jake, and Marceline in order to get Betty, his former fiancée, back.
Love is in the air when Lumpy Space Princess reconnects with an old classmate, but will her jealousy get in the way of finding true love?
Tired of all of Princess Bubblegum's talk about "responsibility," Lemonhope yearns for true freedom. So he sets off on the greatest adventure of his lemony life.
Though Lemonhope finds refuge from the desert with monster hunter Phlannel Boxingday, he might not be able to escape the ghosts of his past.
Finn finds the hero Billy's bucket list and decides to complete the unfinished items as a final tribute.
In order to find Finn's father, Finn and Jake must commit a cosmic crime...unless the Lich beats them to it.
Finn and Jake follow the Lich to the Citadel, where Finn meets his long lost dad. But just how far does the apple fall from the tree?
Finn and Jake discover that Clone James has been faking his own death to collect medals. Now there are 25 Jameses running amok!
Finn doesn't like any of the new arms the princesses give him, so he builds a tower into space to find his dad and get his old arm back. But are his hopes up a little too high?
Once a month, while Jake's asleep, his tail stretches out of the tree house to go work as a clown in a traveling bug circus.
With a friendly bee named "Breezy" as his wingman, Finn decides to get back into the dating game.
On a field trip to the Candy Kingdom Museum of Natural History, Finn and Jake learn about the food chain by becoming the food chain!
Big money problems send Finn and Jake to Wildberry Kingdom.
The beautiful and sensitive Lumpy Space Prince flees his cruel parents to start a new life.
Princess Bubblegum must rally her forces when the Candy Kingdom is rocked by a massive assault.
Shelby the worm discovers that he has a little brother who is bound for adventure in the nooks of Marceline's tree house.
Fed up with Jake's antics, his son Kim Kil Whan takes action.
Ice King and a band of misfit wizards go on a mystical road trip.
It's Princess Day in Ooo! You know what that means? Yep, LSP and Marceline team up to prank Breakfast Princess!
A shadowy figure named Peace Master targets the Candy Kingdom elite.
Finn and Jake's parents hunt an unearthly menace in the woods.
Jake and the tree house are haunted by a vengeful specter.
Jake finds himself trapped in a world made of himself.
Following an ally's memorial service, Jake begins acting strangely.
Jake wants to fulfill a bizarre lifelong ambition.
When Finn's toothache gets too much to take, he has no choice but to go see dentist.
When the Fire Kingdom is struck by a natural disaster, Flame Princess turns to an unlikely ally.
A Candy Kingdom slumber party devolves into panic when Finn and Princess Bubblegum vanish.
In a distant age, the wizard Evergreen quests to save the world.
Finn's spirit is drawn into the astral plane by the power of the mysterious comet.
Tree Trunks and Mr. Pig's child, Sweet P, runs into trouble on his first day of school.
Finn meets a friendly civilization and a sees a mysterious crash site in a vision.
Lemongrab and Finn go on an expedition through the Mountain of Matthew.
Susan Strong and her allies infiltrate the mysterious Super Porp factory.
Jake's son TV discovers a lost diary and sets out to solve a decades-old mystery.
When Finn and Jake stumble into two different holes, they meet two different fates.
Ice King has a plan to form a perfect circle of confidants.
After a chilling dream encounter, Finn & Jake are determined to reconnect with their reclusive brother.
BMO'S favorite artists find a new home in the treehouse.
Marooned on an alien world, Cuber must rely on his bag of Graybles to survive.
A charismatic stranger in Finn's dream leads Cosmic Owl to shirk his duties.
After rescuing Princess Orangutan from Daddy-sad-heads, Finn and Jake head to a post-apocalyptic water park for a day of fun.
Finn and Jake storm Magic Man's house to rescue his new apprentice.
A fed up Lumpy Space Princess leaves the woods for a glamorous career in babysitting.
After a walrus race accident, Gunther starts to experience strange visions.
Finn's dad Martin the Human fights for freedom on a strange new planet!
It's election day in the Candy Kingdom but Princess Bubblegum's attention is diverted by a mysterious presence in the sky.
Finn, Jake and Orgalorg converge with the comet and meet their destiny.
The greed of the King of Ooo leads to a crisis in the Candy Kingdom, and (ex-) Princess Bubblegum has to return briefly from exile to deal with it.
Bubblegum turns to Marceline's help when something threatens the citizens of her homestead.
The arrival of a visitor causes Cherry Cream Soda's life to fall flat.
The loyalty of Finn and Jake comes into question when the King of Ooo orders them to intercept a flying mushroom.
BMO and Football decide upon a deal, but one of them cannot keep up their end of the bargain.
Finn and Jake hunt a shadowy predator and Marceline asks Princess Bubblegum for a favor.
As the sun rises on her last day, Marceline recalls her long extraordinary life.
Five foes from Marceline's past come back to cause trouble for the Land of Ooo.
When one of her oldest adversaries targets the Ice Kingdom, Marceline rushes to Simon's rescue.
Finn, Jake, Marceline, and PB set out to hunt down the Vamps. But who is hunting them?
While Princess Bubblegum searches for a cure for Marceline, Finn and Jake take on one of the Vamps themselves.
On the eve of battle, Marceline's archenemy comes to her with a strange proposal.
The final confrontation begins. Who will survive?
On BMO's birthday, Moe comes to visit and give BMO a special birthday mission. But while BMO is away, Moe begins to overstay his welcome at the tree house.
BMO continues its quest to adulthood. It'll discover that something went wrong in the factory where all the MOs where created.
Viola tries to get a part in LSP's play, but gets made into LSP's personal assistant instead.
BMO convinces his friends to join him in a live action cowboy role-playing game.
Finn and Jake attempt to track down President Porpoise before Vice President Blowfish takes over.
One very spooky night, Finn and Jake come face-to-face with an urban myth.
Finn, Jake, LSP and BMO seek shelter as they contend with some deadly weather.
Ice King suffers a heartbreaking loss and it's up to Finn and Jake to find the culprit.
Finn takes a group of at-risk Candy Kingdom youth on a camping trip they’ll never forget.
Finn and Jake crossover into Farmworld Finn's dimension.
Trapped and alone, Finn must unravel the riddle of the weird cave with no exit.
Finn has secret meetings with a powerful wizard.
Finn and Jake infiltrate the Banana Guard ranks and stumble upon a conspiracy.
When Ice King's magic crown goes haywire, Marceline and Princess Bubblegum resort to extreme measures to help him.
Finn unearths a treasure with a terrible price at the top of Dead Mountain.
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.
Jake's son finds a hidden box and draws attention from a Rainicorn.
When Finn begins having nightmares about his missing Finn Sword, he wonders if they are real.
Finn brings a special delivery for Cinnamon Bun to the Fire Kingdom but it may come with a dangerous cost.
Normal Man asks for Finn and Jake's help to rescue his brother.
Ice King digs up an item buried underneath the Ice Kingdom.
Fionna and Cake go on a cooking adventure to push Cake's art to an all-new level.
Finn hears a mysterious song while judging a Battle of the Bands.
Jake and his daughter Charlie fight to restore Jake's honor and win a super-secret underground Card Wars tourney.
While searching for old human artifacts, Jake, Finn, and Susan Strong meet Tiffany, who is employed by a mysterious Doctor Gross.
After Susan Strong's chip is activated, she goes rogue and attacks Finn.
Finn and Jake puzzle over the nature of a mysterious newcomer.
Doctor Princess thrusts a great responsibility upon Finn. Jake goes adventuring with a new friend.
Kim Kil Whan is worried about his daughter's future and asks Jake for some parental advice.
An otherworldly encounter puts Tree Trunks on the trail of a conspiracy in the Candy Kingdom.
When disaster befalls James Baxter, it’s up to Finn and Jake to help him pick up the pieces.
Princess Bubblegum's scientific mind must wrestle with her Elemental magic potential when she's faced with a Crystal Entity.
A mysterious craft invades Ooo and Finn believes it may hold the secrets to his past.
Finn, Jake, and Susan set sail on a ocean voyage full of wonders and danger.
After waking up alone and shipwrecked, Finn investigates a bizarre island in search of his friends.
Finn and Jake travel to a land where reality has been redesigned and improved.
While exploring some futuristic ruins, Susan sees glimpses of a familiar girl.
An unexpected revelation from Susan leads Finn closer to answers about his past.
Finn and his friends journey to a last refuge called Founders Island.
Finn confronts the power behind Founders Island, but will he ever return home to Ooo?
During the journey home from their sea-faring adventure; Finn, Jake, and BMO encounter a mysterious force that enters their dreams.
Finn, Jake, and BMO return from their voyage to a radically changed Ooo.
The friends learn the story of what happened to Ooo, while Betty continues her attempt to reach Simon, but she's interrupted by someone out to steal her magic.
Finn, Jake and Ice King break into the Ice World to confront the power-hungry evildoer responsible for the chaos in Ooo and try to rescue Betty.
After taking a nap, Finn and Jake get separated from Betty and the Ice King. They need to get back and Jake needs to go pee.
In order to save Ooo, Finn and Jake must gather the four elemental gems. They go to the Slime Kingdom and have to gather Slime Princess's gem.
After gathering the Slime jewel, Finn and LSP go to the Fire Kingdom, to gather the Flame Jewel. Everything has turned even hotter than before.
After going to the Fire Kingdom, Finn becomes taken over by fire. LSP has to save him before he destroys the candy kingdom.
After saving Finn the human during a battle between the candy kingdom and the fire kingdom it is discovered that LSP is made of anti-elemental magic and restores Ooo to it's former state.
Jake struggles through the personal changes happening to him as a mysterious encounter in a dream with his brother Jermaine begins to haunt him.
BMO and Marceline play catch up on recent events.
While performing a reading of 'Fiona and Cake', Ice King is confronted by a familiar figure.
While safeguarding a frightened Sweet P, Finn is led into a confrontation with an old foe.
Finn and Fern's carefree visit to some old ruins turns disastrous.
A fierce creature is terrorizing the Candy Kingdom but before Finn can slay the beast, he must first overcome a guilty conscience.
BMO and Ice King hit the road as door to door salesmen and stumble upon an irresistible opportunity.
When Flame Princess is coaxed into a high stakes battle against the indomitable Son of Rap Bear, Finn must help her search for a new strategy.
A long lost artifact causes Princess Bubblegum to harken back to the creation of the Candy Kingdom.
A mysterious knight crashes Finn's birthday bash and presents him with a dangerous gift.
When an old flame comes calling on urgent business, Tree Trunks reconsiders both her wild past and her tranquil present.
After helping with the creation of a new sword, Hunson Abadeer comes back to try and regain his daughter's love.
Kim Kil Whan tasks Jake and Finn to investigate reports of a haunting in one of Kim Kil Whan's properties "Joshua and Margaret Investigations" since something in there traumatized his top employee Renny Hamlond and does not pay any rent for inhabiting the place.
Finn's latest literary work meets with only derision, so he sets out to prove all the naysayers wrong.
In order to fulfill his grand destiny, Jake is spirited away by a strangely familiar shape-shifting alien.
Searching for answers on Mars, Finn and Jermaine discover that they must first survive a cunning Martian mental trap.
Finn and Jake, as ambassadors of the Candy Kingdom, travel to a powerful new city-state in a last ditch effort to stave off war.
In the distant future, many years after the outcome of the Gum War, two friends named Beth and Shermy recover a rusty old mechanical arm that once belonged to Finn after it is dropped by a Prize Ball Guardian.
