1a "Slumber Party Panic" April 5, 2010 (2010-04-05) 692-009 2.50[3]
After creating a serum to bring dead candy people back to life, Finn and Princess Bubblegum create candy zombies, making Finn keep a royal promise of having to protect the people from discovering about it.
"Trouble in Lumpy Space" April 5, 2010 (2010-04-05) 692-015
Finn must travel to Lumpy Space to find a cure that will save Jake, who was accidentally bitten by Lumpy Space Princess at Princess Bubblegum's marshmallow tea party.
2a "Prisoners of Love" April 12, 2010 (2010-04-12) 692-005 1.85[4]
Finn and Jake attempt to rescue a series of princesses who were kidnapped by Ice King in an attempt to marry one.
2b "Tree Trunks" April 12, 2010 (2010-04-12) 692-016
Tree Trunks joins Finn and Jake who go on a quest to fulfill TT's desire of picking a proposed legendary apple in an evil forest.
3a "The Enchiridion!" April 19, 2010 (2010-04-19) 692-001 2.10[6]
Finn and Jake go on a quest for a magical book that would prove them worthy of being righteous heroes.

NOTE: This is the first episode of the series to be produced[5] followed by "Rainy Day Daydream" which aired on September 6, 2010.

3b "The Jiggler" April 19, 2010 (2010-04-19) 692-011
A strange creature attracted by Finn's auto tune and follows the duo to their home and they keep him as a pet, but soon struggles to keep him after several strange occurences.
4a "Ricardio the Heart Guy" April 26, 2010 (2010-04-26) 692-007 1.91[7]

Finn believes that Princess Bubblegum's new friend is evil. Guest voice: George Takei as Ricardio.

4b "Business Time" April 26, 2010 (2010-04-26) 692-014
Finn and Jake fall victim to their own laziness when they delegate their adventuring responsibilities to a group of businessmen thawed from an iceberg.

Guest voice: Brian Posehn as Business Man #1 NOTE: A sneak peek of this episode was shown on March 11, 2010.

5a "My Two Favorite People" May 3, 2010 (2010-05-03) 692-004 1.65[8]
Jake feels overwhelmed at not having enough time for Finn and Lady Rainicorn, so he tries to get them to hang out more, leading to disaster between the two friends.
5b "Memories of Boom Boom Mountain" May 3, 2010 (2010-05-03) 692-010
Finn reflects on an upsetting experience in his past and pledges to help everyone in need, but this proves more difficult than imagined.
6a "Wizard" May 10, 2010 (2010-05-10) 692-020 1.82[9]
Finn and Jake are coaxed by a skeleton man to enroll in a course for free magic powers, but are ultimately tricked into helping stop an asteroid.
6b "Evicted!" May 17, 2010 (2010-05-17) 692-003 1.88[10]
Finn and Jake search the land of Ooo for a new home after a vampire girl named Marceline claims the duo's treehouse as her own.

NOTE: A sneak peek of this episode was shown on March 18, 2010.

7a "City of Thieves" May 24, 2010 (2010-05-24) 692-012 1.83[11]
When confronted by a Tree Witch over how uncorruptible he is, Finn enters the City of Thieves with Jake to confront a thief king who has been stealing from a little girl. However, staying pure of heart within the city proves to be easier said than done.
7b "The Witch's Garden" June 7, 2010 (2010-06-07) 692-022 1.81[12]
Jake loses his enthusiasm for adventure when a witch strips him of his powers as a penalty for trespassing in her garden.
8a "What Is Life?" June 14, 2010 (2010-06-14) 692-017 1.64[13]

Finn builds N.E.P.T.R., a never-ending pie-throwing robot, to seek revenge against Jake, but the machine's conscience is conflicted by the will of the Ice King when he was attacked by his private particles. Guest voice: Andy Milonakis as N.E.P.T.R.

8b "Ocean of Fear" June 21, 2010 (2010-06-21) 692-025 2.00[14]
Jake tries to help Finn overcome his sudden fear of the ocean.
9a "When Wedding Bells Thaw" June 28, 2010 (2010-06-28) 692-013 1.92[15]
The Ice King suppresses his kidnapping urges to wed a suspicious bride and convinces Finn and Jake to throw him a manlorette party. But soon realizes he'll have to give up his constant hobby.
9b "Freak City" July 26, 2010 (2010-07-26) 692-008 2.03[16]
After being transformed into a foot by a magic man, Finn joins forces with a band of misfits to fix the problem.
10a "Henchman" August 23, 2010 (2010-08-23) 692-021 2.17[17]
Finn takes the place as Marceline's new henchman, but finds it hard to obey her evil ways.
10b "Dungeon" July 12, 2010 (2010-07-12) 692-023 2.48[18]
Finn's headstrong decision to explore a dungeon in defiance of Jake and Princess Bubblegum's warnings puts him in great danger.
11a "The Duke" July 19, 2010 (2010-07-19) 692-019 1.84[19]
Finn turns Princess Bubblegum green and bald, and faces a moral quandary--whether to confess his mistake and be hated by his friend forever, or let Princess Bubblegum wrongly accuse the Duke of Nuts instead.
11b "Donny" August 9, 2010 (2010-08-09) 692-018
Finn and Jake help a bullying grass ogre named Donny turn his life around, without realizing the ecological damage they may be causing in the process.
12a "Rainy Day Daydream" September 6, 2010 (2010-09-06) 692-002 2.17[20]
Stuck indoors due to a raining knife storm, Finn discovers that Jake can make his imagination come to life, causing chaos in the treehouse.
12b "What Have You Done?" September 13, 2010 (2010-09-13) 692-006 1.54[21]
Without giving good details Princess Bubblegum tells Finn and Jake to capture the Ice King as their prisoner, but when they interrogate him they think that he's innocent.
13a "His Hero" September 20, 2010 (2010-09-20) 692-026 1.83[22]

The great warrior Billy inspires Finn and Jake to practice nonviolence, but the duo finds it difficult to resist old ways. Guest voice: Lou Ferrigno as Billy.

13b "Gut Grinder" September 27, 2010 (2010-09-27) 692-024 1.77
Finn and Jake pursue a havoc-wreaking "Gut Grinder," but Jake suspects he himself might be the culprit.

[edit] Season 2: 2010–2011

# Title Original U.S. airdate Production code # of U.S. viewers

(in millions)

14a "It Came from the Nightosphere" October 11, 2010 (2010-10-11) 1002-029 2.001[23]
Finn releases Marceline's estranged father from the Nightosphere, but ends up having to stop him from stealing all the souls in Ooo.
14b "The Eyes" October 18, 2010 (2010-10-18) 1002-031 2.264[24]
Finn and Jake are kept awake by a horse that does nothing but stare at them with its big eyes.
15a "Loyalty to the King" October 25, 2010 (2010-10-25) 1002-027 2.541[25]
The Ice King shaves his beard after a princess "breaks up" with him, but when his new look proves to attract other princesses, he capitalizes on the unexpected opportunity.
15b "Blood Under the Skin" November 1, 2010 (2010-11-01) 1002-028 1.952[26]
After receiving a splinter on his finger, Finn seeks the Magical Armor of Zelderon for protection, but cannot take the embarrassment.
16a "Storytelling" November 8, 2010 (2010-11-08) 1002-030 2.148[27]
While sick and stuck in bed, Jake wants Finn to tell him a story to make him feel better.
16b "Slow Love" November 15, 2010 (2010-11-15) 1002-032 2.090[28]

Finn and Jake try to woo a group of lady snails in order to save their house from a giant snail named Snorlock, who was using it as a shell. Guest voices: Biz Markie as Snorlock

17a "Power Animal" November 22, 2010 (2010-11-22) 1002-033 2.228[29]

Jake must stay focused in order to rescue Finn, who has been kidnapped by a gang of evil gnomes bent on turning Ooo literally upside down. Guest voice: Paul Reubens as the Gnome Ruler.

17b "Crystals Have Power" November 29, 2010 (2010-11-29) 1002-036 2.002[30]
Jake challenges his inopportune pledge of nonviolence to save Finn from crystaline dimension outlaws who are working for someone the two thought had died.
18a "The Other Tarts" January 3, 2011 (2011-01-03) 1002-038 1.974
Finn and Jake volunteer to help Princess Bubblegum with a dangerous assignment: toting rare and delicious tarts for the Annual Royal Back Rubbing Ceremony.
18b "To Cut a Woman's Hair" January 10, 2011 (2011-01-10) 1002-035 1.886[31]
Finn must get a lock of hair from a princess to save Jake from the balding Tree Witch, but this task proves harder than expected, and ends up revealing his biggest secret.
19a "The Chamber of Frozen Blades" January 17, 2011 (2011-01-17) 1002-037
Finn and Jake await for the Ice King and Gunther to return to the kingdom, thinking that he is coming back with a stolen princess, and find the Ice King's secret sanctum.
19b "Her Parents" January 24, 2011 (2011-01-24) 1002-034 2.177[32]

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. Guest voices: Henry Rollins and Laura Silverman as Lady Rainicorn's parents.

20a "The Pods" January 31, 2011 (2011-01-31) 1002-039 1.944[33]
Finn and Jake are assigned to protect three magical beans, but have problems figuring which of the beans is evil.
20b "The Silent King" February 7, 2011 (2011-02-07) 1002-040 1.532
Finn becomes the king of a goblin clan in order to prevent a conflict of violence, but their strange rules prove to be not of his liking.
21a "The Real You" February 14, 2011 (2011-02-14) 1002-041 1.825[34]
Finn has to give a speech at Princess Bubblegum's science barbecue and seeks a quick fix to make himself smarter.
21b "Guardians of Sunshine" February 21, 2011 (2011-02-21) 1002-042 1.729[35]
Finn and Jake get sucked into one of Beemo's games and they have to defeat all three of his bosses.
22a "Death in Bloom" February 28, 2011 (2011-02-28) 1002-044 1.981[36]
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 its soul back.
22b "Susan Strong" March 7, 2011 (2011-03-07) 1002-045 2.378[37]
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.
23a "Mystery Train" March 14, 2011 (2011-03-14) 1002-043 1.958[38]
Wanting to surprise Finn on his birthday, Jake takes Finn on a train, where they get wrapped up in a murder mystery.
23b "Go With Me" March 28, 2011 (2011-03-28) 1002-046 1.270
Marceline and Jake give Finn advice so he can ask Princess Bubblegum to see a movie with him.
24a "Belly of the Beast" April 4, 2011 (2011-04-04) 1002-047 1.640[39]

In order to cure the stomach ache of a giant, Finn and Jake must break up a party happening in his belly. Guest voice: Andy Samberg as Party Pat.

24b "The Limit" April 11, 2011 (2011-04-11) 1002-048 1.693[40]
Finn and Jake must risk it all to see their dreams come true at the center of a magic wish-granting maze.
25a "Videomakers" April 18, 2011 (2011-04-18) 1002-051 1.733[41]
Finn and Jake are on an epic race to make a movie for their "Finn and Jake Movie Club", but end up arguing over the film's plot.
25b "Heat Signature" May 9, 2011 (2011-05-09) 1002-050 1.975
Marceline pranks Finn and Jake into thinking that they're vampires.
26a "Mortal Folly" May 2, 2011 (2011-05-02) 1002-049 1.920[42]

Finn and Jake must go on a quest to find the Lich (originally sealed away by Billy), while the Ice King pesters them for permission to marry Princess Bubblegum. Guest voice: Ron Perlman as The Lich.

26b "Mortal Recoil" May 2, 2011 (2011-05-02) 1002-052 1.920[42]

The spirit of The Lich possesses Princess Bubblegum and it is up to Finn and Jake to stop him. Guest voices: Isabella Acres as 13-year-old Princess Bubblegum and Kevin Michael Richardson as Lich-Possessed Princess Bubblegum

[edit] Season 3: 2011

# Title[43] Original U.S. airdate Production code # of U.S. viewers

(in millions)

27a "Conquest of Cuteness" July 11, 2011[45] 1008-053 2.686
Finn and Jake meet the "evil" Cute King and the Cuties.[44]
27b "Morituri te Salutamus" July 18, 2011[47] 1008-054 2.528
Finn and Jake try to defeat gladiator ghosts in a cursed Arena, while also trying to think of ways to escape.[46]
28a "Memory of a Memory" July 25, 2011[48] 1008-057 2.255
Finn and Jake travel inside Marceline's memory.
28b "Hitman" August 1, 2011[49] 1008-055 2.273
The Ice King unwittingly hires a hit man to go after Finn and Jake.
29a "Too Young" August 8, 2011[50] 1008-059
Princess Bubblegum's uncle tries to claim the throne.
29b "Adventure Time with Fionna and Cake" TBA 1008-058
This is confirmed to be a gender-swapped version of the series.
30a "The Monster" TBA 1008-056
30b "Still" TBA 1008-060
31a "Wizard Battle" TBA 1008-061
31b "Door Jam" TBA 1008-062
32a "Thank You" TBA 1008-063
32b "From Bad to Worse" TBA 1008-064
33a "Beautopia" TBA 1008-065
33b "No One Can Hear You" TBA 1008-066
34a "Apple Thief" TBA 1008-067
34b "Holly Jolly Secrets (Pt I)" TBA 1008-068
35a "Holly Jolly Secrets (Pt II)" TBA 1008-069
35b "The Creeps" TBA 1008-070
36a "An Assassin in Jake's Nose" TBA 1008-071
36b "The Croak List" TBA 1008-072
37a "Marceline's Closet" TBA 1008-073
37b "Heart of the Fire Kingdom" TBA 1008-074
38a "Word War II" TBA 1008-075
38b "Another Way" TBA 1008-076
39a "Ghost Princess" TBA 1008-077
39b "Dungeon"
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