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Poster for Adventure Time · Season 9

Adventure Time

Adventure Time: Season 9

  • 2017
  • 14 episodes
  • 11m

Season 9 of Adventure Time premiered on April 21, 2017 and has 14 episodes, from "Orb" to "Three Buckets". The last episode aired on July 21, 2017.

Where to watch Adventure Time

In the United States, you can stream Adventure Time on Hulu and HBO Max. You can also buy it on Amazon Video, Apple TV Store, Google Play Movies and Fandango At Home. It is on streaming services in 86 countries.

Where to watch

Episodes

  1. Episode 1OrbAired April 21, 2017

    During the journey home from their sea-faring adventure; Finn, Jake, and BMO encounter a mysterious force that enters their dreams.

    • 11m
  2. Episode 2Elements: Skyhooks (1)Aired April 24, 2017

    Finn, Jake, and BMO return from their voyage to a radically changed Ooo.

    • 11m

    Guest stars

  3. Episode 3Elements: Bespoken For (2)Aired April 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.

    • 11m
  4. Episode 4Elements: Winter Light (3)Aired April 25, 2017

    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.

    • 11m

    Guest stars

  5. Episode 5Elements: Cloudy (4)Aired April 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.

    • 11m
  6. Episode 6Elements: Slime Central (5)Aired April 26, 2017

    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.

    • 11m

    Guest stars

  7. Episode 7Elements: Happy Warrior (6)Aired April 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.

    • 11m
  8. Episode 8Elements: Hero Heart (7)Aired April 27, 2017

    After going to the Fire Kingdom, Finn becomes taken over by fire. LSP has to save him before he destroys the candy kingdom.

    • 11m

    Guest stars

    • Isabella Acres Young Princess Bubblegum (voice)
    • Justin Roiland Lemonpink (voice)
  9. Episode 9Elements: Skyhooks II (8)Aired April 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.

    • 11m
  10. Episode 10AbstractAired July 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.

    • 11m
  11. Episode 11KetchupAired July 18, 2017

    BMO and Marceline play catch up on recent events.

    • 11m
    • Directed by Elizabeth Ito
    • Written by Patrick McHale, Seo Kim, Adam Muto and Somvilay Xayaphone

    Guest stars

  12. Episode 12Fionna and Cake and FionnaAired July 19, 2017

    While performing a reading of 'Fiona and Cake', Ice King is confronted by a familiar figure.

    • 11m

    Guest stars

    • Chelsea Peretti Queen of Ooo (voice)
  13. Episode 13WhispersAired July 20, 2017

    While safeguarding a frightened Sweet P, Finn is led into a confrontation with an old foe.

    • 11m

    Guest stars

    • Zach King Fizzbang (voice)
  14. Episode 14Three BucketsAired July 21, 2017

    Finn and Fern's carefree visit to some old ruins turns disastrous.

    • 11m

Season cast