Looking to dive into Adventure Time but daunted by 279 episodes? Or maybe you’re a returning fan wanting a refresher before the finale, skipping filler but craving those crucial Bubbline moments? This episode guide is crafted just for you!
This updated Adventure Time episode guide pinpoints all the must-watch episodes containing major plot developments, essential backstory, and of course, those beloved Bubbline moments. We’ve also included optional episodes to enhance your understanding and enjoyment of the show, noting their purpose (be warned: skipping arc-related episodes might make later plot points confusing!).
We’ve streamlined the series from 279 to a manageable 181 ten-minute episodes (or just 100 if you focus solely on the core storyline and skip optional viewing).
Remember, optional episodes are italicized. Episodes featuring Bubbline moments, Marceline/Princess Bubblegum character development, or significant backstory/plot points are bolded. Episodes marked with an asterisk (*) are standalone and can be watched anytime, though watching within the suggested season is still recommended for context. Enjoy your Adventure Time journey!
Season 1
1 x 2 “Trouble in Lumpy Space” | Introduces Lumpy Space Princess (LSP)
1 x 3 “Prisoners of Love” | Introduces the Ice King
1 x 5 “The Enchiridion”
1 x 9 “My Two Favorite People” | Introduces Jake & Lady Rainicorn (LR) relationship arc
1 x 10 “Memories of Boom Boom Mountain”
1 x 12 “Evicted”
1 x 15 “What is Life?” | Introduces NEPTR + Ice King character exploration
1 x 16 “Ocean of Fear” | Finn character exploration
1 x 17 “When Wedding Bells Thaw” | Ice King character exploration
1 x 20 “Freak City” | Introduces Magic Man
1 x 22 “Henchman”
1 x 24 “What Have You Done?” | Ice King character exploration (*)
1 x 25 “His Hero”
Season 2
2 x 1 “It Came from the Nightosphere”
2 x 2 “The Eyes” | Ice King character exploration
2 x 3 “Loyalty to the King” | Ice King character exploration
2 x 7 “Power Animal” | Expands the Adventure Time universe
2 x 10 “To Cut a Woman’s Hair”
2 x 11 “Chamber of Frozen Blades” | Ice King character exploration (*)
2 x 12 “Her Parents” | Jake and Lady Rainicorn (LR) relationship arc
2 x 15 “The Real You”
2 x 17 “Death in Bloom” | Expands the AT universe
2 x 18 “Susan Strong” | Introduces the Susan Strong arc
2 x 20 “Go with Me” | Subtle Bubbline hints
2 x 24 “Mortal Folly”
2 x 25 “Mortal Recoil”
2 x 26 “Heat Signature”
Season 3
3 x 3 “Memory of a Memory”
3 x 5 “Too Young”
3 x 6 “The Monster” | LSP character exploration/general charm (*)
3 x 7 “Still” | Ice King character exploration
3 x 9 “Fiona and Cake” | Gender-swapped episode (*)
3 x 10 “What was Missing”
3 x 14 “Beautopia” | Susan Strong arc continuation
3 x 17 “Thank You” | Not crucial to plot, but heartwarming (*)
3 x 18 “Apple Thief” | Not crucial to plot, but a fan favorite (*)
3 x 19 “Holly Jolly Secrets Pt. 1”
3 X 20 “Holly Jolly Secrets Pt. 2″
3 x 21 “Marceline’s Closet”
3 x 25 “Dad’s Dungeon” | Finn and Jake backstory
3 x 26 “Incendium” | Flame Princess arc
Season 4
4 x 1 “Hot to the Touch” | Flame Princess arc
4 x 2 “Five Short Graybles” | Expands the AT universe (*)
4 x 5 “Return to the Nightsophere”
4 x 6 “Daddy’s Little Monster”
4 x 8 “Hug Wolf” | Generally charming (*)
4 x 9 “Princess Monster Wife” | Ice King character exploration + excellent episode
4 x 10 Goliad
4 x 11 “Beyond this Earthly Realm” | Ice King character exploration
4 x 13 “Princess Cookie” | Generally charming
4 x 15 “Sons of Mars” | Expands the AT universe
4 x 16 “Burning Low” | Flame Princess arc + Princess Bubblegum character exploration
4 x 18 “King Worm” | Significant foreshadowing
4 x 19 “Lady and Peebles”
4 x 20 “You Made Me”
4 x 22 “Ignition Point” | Flame Princess Arc
4 x 23 “Reign of Gunters”
4 x 24 “I Remember You”
4 x 26 “The Lich”
Season 5
5 x 1 “Finn the Human”
5 x 2 “Jake the Dog”
5 x 6 “Jake the Dad” | Jake/Lady Rainicorn arc
5 x 5 “All the Little People” | Intriguing and very subtle Bubbline cameo
5 x 9 “All Your Fault”
5 x 11 “Bad Little Boy” | Gender-swapped + Marceline/Ice King development
5 x 12 “Vault of Bones” | Flame Princess arc
5 x 14 “Simon and Marcy”
5 x 16 “Puhoy” | Flame Princess arc
5 x 17 “BMO Lost” | Exceptionally adorable, a must-watch for BMO fans (*)
5 x 18 “Princess Potluck” | Ice King character exploration (*)
5 x 20 “Shh!” | Expands AT universe and is charming/unique (*)
5 x 21 “The Suitor”
5 x 22 “The Party’s Over, Isla de Senorita” | Ice King character development
5 x 23 “One Last Job” | Jake character development
5 x 26 “Wizards Only, Fools”
5 x 28 “Be More” | BMO backstory (*)
5 x 29 “Sky Witch”
5 x 30 “Frost and Fire” | Flame Princess arc
5 x 31 “Too Old”
5 x 32 “Earth and Water”
5 x 33 “Time Sandwich”
5 x 34 “The Vault”
5 x 38 “Red Starved”
5 x 40 “Play Date” | Finn character development
5 x 41 “The Pit” | Finn character development
5 x 45 “Blade of Grass”
5 x 46 “Rattleballs” | Finn character development
5 x 47 “The Red Throne” | Flame Princess arc
5 x 48 “Betty”
5 x 50 “Lemonhope Pt. 1″
5 x 51 “Lemonhope Pt. 2″
5 x 52 “Billy’s Bucket List”
Season 6
6 x 1 “Wake Up”
6 x 2 “Escape from the Citadel”
6 x 4 “The Tower” | Finn character development
6 x 6 “Breezy”
6 x 9 “The Prince Who Wanted Everything | Gender-swapped episode (*)
6 x 10 “Something Big”
6 x 12 “Ocarina” | Jake character development
6 x 14 “Princess Day”
6 x 16 “Joshua and Margaret Investigate”
6 x 19 “Is That You?” | Flame Princess arc
6 x 22 “The Cooler” | Flame Princess arc
6 x 23 “The Pajama War”
6 x 24 “Evergreen”
6 x 25 “Astral Plane” | Martin arc
6 x 26 “Gold Stars” | Lich arc
6 x 27 “The Visitor” | Martin arc
6 x 28 “The Mountain” | Flame Princess arc + Lemongrab character exploration
6 x 29 “Dark Purple” | Susan Strong arc
6 x 32 “Friends Forever” | Ice King character exploration
6 x 35 “Graybles 1000+” | Foreshadowing
6 x 38 “You Forgot Your Floaties”
6 x 39 “Be Sweet” | Lich arc + LSP character development
6 x 40 “Orgalorg”
6 x 42 “Hot Diggity Doom”
6 x 43 “The Comet”
Season 7
7 x 1 “Bonnie & Neddy”
7 x 2 “Varmits”
7 x 4 “Mama Said” | Finn/Jake character development
7 x 5 “Football” | Adorable BMO episode (*)
7 x 6 “Marceline the Vampire Queen”
7 x 7 “Everything Stays”
7 x 8 “Vamps About”
7 x 9 “The Empress Eyes”
7 x 10 “May I Come In?”
7 x 11 “Take Her Back”
7 x 12 “Checkmate”
7 x 13 “The Dark Cloud”
7 x 14 “The More You Moe, The Moe You Know (Part I)” | BMO arc
7 x 15 “The More you Moe, The Moe You Know (Part II)” | BMO arc
7 x 18 “President Porpoise is Missing!” | Adorable + Marceline cameo
7 x 21 “King’s Ransom”
7 x 25 “Flute Spell” | Introduces Huntress Wizard
7 x 26 “The Thin Yellow Line”
7 x 27 “Broke His Crown”
7 x 28 “Don’t Look”
7 x 29 “Beyond the Grotto” | Expands AT universe/intriguing (*)
7 x 30 “Lady Rainicorn of the Crystal Dimension” | Lady Rainicorn backstory (*)
7 x 31 “I am a Sword”
7 x 33 “Normal Man”
7 x 34 “Elemental”
7 x 35 “Five Short Tables” | Gender-swapped episode (*)
7 x 36 “The Music Hole”
7 x 38 “Preboot”
7 x 39 “Reboot”
Season 8
8 x 1 “Two Swords”
8 x 2 “Do No Harm” | Finn / Fern character exploration
8 x 3 “Wheels” | Jake character exploration/background (*)
8 x 4 “High Strangeness”
8 x 6 “Jelly Beans Have Powers”
8 x 7 “The Invitation”
8 x 8 “Whipple the Happy Dragon” | Susan Strong arc + Finn character exploration
8 x 9 “Mysterious Island” | Finn character exploration
8 x 10 “Imaginary Resources” | BMO character exploration
8 x 11 “Hide and Seek”
8 x 12 “Min and Marty”
8 x 13 “Helpers”
8 x 14 “The Light Cloud”
8 x 16 “Skyhooks”
8 x 17 “Bespoken For”
8 x 18 “Winter Light”
8 x 19 “Cloudy” | Finn character development
8 x 20 “Slime Central”
8 x 21 “Happy Warrior”
8 x 22 “Hero Heart”
8 x 23 “Skyhooks II”
8 x 24 “Abstract” | Jake arc
8 x 25 “Ketchup”
8 x 26 “Fionna and Cake and Fionna” ()*
8 x 27 “Whispers” | Lich/Sweet P arc + Fern character exploration
8 x 28 “Three Buckets”
Season 9
9 x 1 The Wild Hunt
9 x 3 “Son of a Rap Bear” | Flame Princess arc
9 x 4 “Bonnibel Bubblegum”
9 x 5 “Seventeen”
9 x 7 “Marcy and Hunson”
9 x 8 “The First Investigation”
9 x 10 “Jake the Starchild”
9 x 11 “Temple of Mars”
9 x 12 “Gumbaldia”
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