Adventure Time Season 9
S09 E01Apr 21, 2017
Orb Apr 21, 2017 During the journey home from their sea-faring adventure; Finn, Jake, and BMO encounter a mysterious force that enters their dreams.
S09 E02Apr 24, 2017
Elements Part 1: Skyhooks Apr 24, 2017 Finn, Jake and BMO arrive back in Ooo and discover that their home and the areas surrounding it have been entirely converted into candy. They also encounter Fern, N.E.P.T.R., Shelby, Lemongrab, Tree Trunks, Mr. Pig and Marceline who have been converted into happily brainwashed candy people. A frightened Sweet P is the only person who is still normal and directs the gang to a mysterious candy tower. The tower turns out to be Princess Bubblegum who has become a large candy being and attempts to convert the gang into candy people as well. While BMO is completely transformed, Finn and Jake are rescued by Ice King who takes them to the Sky Kingdom. As Finn and Jake look down, they discover that Ooo has been divided into four completely corrupted sections.
S09 E03Apr 24, 2017
Elements Part 2: Bespoken For Apr 24, 2017 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.
S09 E04Apr 25, 2017
Elements Part 3: Winter Light Apr 25, 2017 Finn, Jake and Ice King travel to the Ice World and break through the large ice dome covering the center of the land. They encounter Carroll (voiced by Cameron Esposito), from "The Tower", who was converted to Ice and is genuinely pleased with her new appearance. The gang eventually encounter a powered up, and rather withheld, Patience who seems disappointed with the outcome of the new Ooo. While she succeeded in empowering the other elementals they have relegated themseleves to their sections of Ooo as Patience had forced them to power up rather than allow them to do so themseleves. The gang rescue Betty and leave while Patience bemoans the new world to an iced Choose Goose. Betty reveals that she can help them with the power of the Enchiridion which Finn has, causing Betty to ominously laugh.
S09 E05Apr 25, 2017
Elements Part 4: Cloudy Apr 25, 2017 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.
S09 E06Apr 26, 2017
Elements Part 5: Slime Central Apr 26, 2017 Finn and Jake arrive in the transformed Slime Kingdom to retrieve Slime Princess' crown for her jewel. They run into Lumpy Space Princess who is attending Slime Princess's roller skating party. The winners of the skating competition get absorbed into Slime Princess's whole being while the losers are caged up. Finn, Jake and Lumpy Space Princess enter, but lose, only to learn that by losing they still get absorbed. While Finn manages to grab the crown, Jake gets fully absorbed into Slime Princess forcing Lumpy Space Princess to save Finn, revealing in the process that 'her lumps' protect her from corruption. They are ejected from Slime Princess and forced to leave. Finn is saddened at the loss of Jake, but Lumpy Space Princess explains that Finn and Jake always win which inspires Finn to continue his mission.
S09 E07Apr 26, 2017
Elements Part 6: Happy Warrior Apr 26, 2017 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.
S09 E08Apr 27, 2017
Elements Part 7: Hero Heart Apr 27, 2017 Lumpy Space Princess chases Finn and attempts to turn him back to normal, but to no avail. Ice King and Betty try to intervene, but are swatted away by Flame Princess. The Fire Kingdom inhabitants 'fight' the Candy Kingdom inhabitants making Lumpy Space Princess upset. After eating some of Marceline, who is made of marshmallows, Lumpy Space Princess reaches out to Finn's hero heart by placing some of Princess Bubblegum onto him. Recalling happier times with PB, Finn returns to normal. PB then fires her candy powers into the air and converts everyone into obedient candy people, except for Finn who was protected by Lumpy Space Princess. Finn nabs the three jewels and gives them to Betty, but she leaves him behind. Finn finds himself surrounded by the Candy Kingdom.
S09 E09Apr 27, 2017
Elements Part 8: Skyhooks II Apr 27, 2017 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.
S09 E10Jul 17, 2017
Abstract Jul 17, 2017 Jake struggles through the personal changes happening to him as a mysterious encounter in a dream with his brother Jermaine begins to haunt him.
S09 E11Jul 18, 2017
Ketchup Jul 18, 2017 BMO and Marceline play catch up on recent events.
S09 E12Jul 19, 2017
Fionna and Cake and Fionna Jul 19, 2017 While performing a reading of 'Fiona and Cake', Ice King is confronted by a familiar figure.
S09 E13Jul 20, 2017
Whispers Jul 20, 2017 While safeguarding a frightened Sweet P, Finn is led into a confrontation with an old foe.
S09 E14Jul 21, 2017
Three Buckets Jul 21, 2017 Finn and Fern's carefree visit to some old ruins turns disastrous.
S09 E15Sep 17, 2017
The Wild Hunt Sep 17, 2017 A fierce creature is terrorizing the Candy Kingdom but before Finn can slay the beast, he must first overcome a guilty conscience.
S09 E16Sep 17, 2017
Always BMO Closing Sep 17, 2017 While safeguarding a frightened Sweet P, Finn is led into a confrontation with an old foe.
S09 E17Sep 17, 2017
Son of Rap Bear Sep 17, 2017 An unexpected critic shows up at Ice King’s latest Fionna and Cake book reading.
S09 E18Sep 17, 2017
Bonnibel Bubblegum Sep 17, 2017 BMO and Marceline swap stories about their recent adventures.
S09 E19Dec 18, 2017
Seventeen Dec 18, 2017 A mysterious knight crashes Finn's birthday bash and presents him with a dangerous gift.
S09 E20Dec 18, 2017
Ring of Fire Dec 18, 2017 When an old flame comes calling on urgent business, Tree Trunks reconsiders both her wild past and her tranquil present.
S09 E21Dec 18, 2017
Marcy & Hunson Dec 18, 2017 Hunson Abadeer returns to Ooo to bond with his daughter Marceline, but will he be able to prove he's changed his soul-sucking ways?
S09 E22Dec 18, 2017
The First Investigation Dec 18, 2017 Finn and Jake are tasked with investigating reports of a haunting at Joshua and Margaret's old office.
Diamonds and Lemons Finn and his friends experience setbacks and creative triumphs in a fantastic new vision of Ooo.TBA 2018