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Season 8: Episode 21

Adventure Time (2010)

Season 8: Episode 20

Islands: The Invitation (1)

TMDb
8.499
Air Date:
2025-12-06
Genre
Animation Comedy Sci-Fi & Fantasy
Release Date
2010
End Date
2018
Episode Description
A mysterious craft invades Ooo and Finn believes it may hold the secrets to his past.
176 Total views
3
Episode 1
Slumber Party Panic
Episode 2
Trouble in Lumpy Space
Episode 3
Prisoners of Love
Episode 4
Tree Trunks
Episode 5
The Enchiridion!
Episode 6
The Jiggler
Episode 7
Ricardio the Heart Guy
Episode 8
Business Time
Episode 9
My Two Favorite People
Episode 10
Memories of Boom Boom Mountain
Episode 11
Wizard
Episode 12
Evicted!
Episode 13
City of Thieves
Episode 14
The Witch's Garden
Episode 15
What Is Life?
Episode 16
Ocean of Fear
Episode 17
When Wedding Bells Thaw
Episode 18
Dungeon
Episode 19
The Duke
Episode 20
Freak City
Episode 21
Donny
Episode 22
Henchman
Episode 23
Rainy Day Daydream
Episode 24
What Have You Done?
Episode 25
His Hero
Episode 26
Gut Grinder
Episode 1
It Came from the Nightosphere
Episode 2
The Eyes
Episode 3
Loyalty to the King
Episode 4
Blood Under the Skin
Episode 5
Storytelling
Episode 6
Slow Love
Episode 7
Power Animal
Episode 8
Crystals Have Power
Episode 9
The Other Tarts
Episode 10
To Cut a Woman's Hair
Episode 11
The Chamber of Frozen Blades
Episode 12
Her Parents
Episode 13
The Pods
Episode 14
The Silent King
Episode 15
The Real You
Episode 16
Guardians of Sunshine
Episode 17
Death in Bloom
Episode 18
Susan Strong
Episode 19
Mystery Train
Episode 20
Go with Me
Episode 21
Belly of the Beast
Episode 22
The Limit
Episode 23
Video Makers
Episode 24
Mortal Folly
Episode 25
Mortal Recoil
Episode 26
Heat Signature
Episode 1
Conquest of Cuteness
Episode 2
Morituri te Salutamus
Episode 3
Memory of a Memory
Episode 4
Hitman
Episode 5
Too Young
Episode 6
The Monster
Episode 7
Still
Episode 8
Wizard Battle
Episode 9
Fionna and Cake
Episode 10
What Was Missing
Episode 11
Apple Thief
Episode 12
The Creeps
Episode 13
From Bad to Worse
Episode 14
Beautopia
Episode 15
No One Can Hear You
Episode 16
Jake vs. Me-Mow
Episode 17
Thank You
Episode 18
The New Frontier
Episode 19
Holly Jolly Secrets (1)
Episode 20
Holly Jolly Secrets (2)
Episode 21
Marceline's Closet
Episode 22
Paper Pete
Episode 23
Another Way
Episode 24
Ghost Princess
Episode 25
Dad's Dungeon
Episode 26
Incendium
Episode 1
Hot to the Touch
Episode 2
Five Short Graybles
Episode 3
Web Weirdos
Episode 4
Dream of Love
Episode 5
Return to the Nightosphere
Episode 6
Daddy's Little Monster
Episode 7
In Your Footsteps
Episode 8
Hug Wolf
Episode 9
Princess Monster Wife
Episode 10
Goliad
Episode 11
Beyond This Earthly Realm
Episode 12
Gotcha!
Episode 13
Princess Cookie
Episode 14
Card Wars
Episode 15
Sons of Mars
Episode 16
Burning Low
Episode 17
BMO Noire
Episode 18
King Worm
Episode 19
Lady & Peebles
Episode 20
You Made Me!
Episode 21
Who Would Win?
Episode 22
Ignition Point
Episode 23
The Hard Easy
Episode 24
Reign of Gunters
Episode 25
I Remember You
Episode 26
The Lich
Episode 1
Finn the Human
Episode 2
Jake the Dog
Episode 3
Five More Short Graybles
Episode 4
Up a Tree
Episode 5
All the Little People
Episode 6
Jake the Dad
Episode 7
Davey
Episode 8
Mystery Dungeon
Episode 9
All Your Fault
Episode 10
Little Dude
Episode 11
Bad Little Boy
Episode 12
Vault of Bones
Episode 13
The Great Bird Man
Episode 14
Simon & Marcy
Episode 15
A Glitch Is a Glitch
Episode 16
Puhoy
Episode 17
BMO Lost
Episode 18
Princess Potluck
Episode 19
James Baxter the Horse
Episode 20
Shh!
Episode 21
The Suitor
Episode 22
The Party's Over, Isla de Señorita
Episode 23
One Last Job
Episode 24
Another Five More Short Graybles
Episode 25
Candy Streets
Episode 26
Wizards Only, Fools
Episode 27
Jake Suit
Episode 28
Be More
Episode 29
Sky Witch
Episode 30
Frost & Fire
Episode 31
Too Old
Episode 32
Earth & Water
Episode 33
Time Sandwich
Episode 34
The Vault
Episode 35
Love Games
Episode 36
Dungeon Train
Episode 37
Box Prince
Episode 38
Red Starved
Episode 39
We Fixed a Truck
Episode 40
Play Date
Episode 41
The Pit
Episode 42
James
Episode 43
Root Beer Guy
Episode 44
Apple Wedding
Episode 45
Blade of Grass
Episode 46
Rattleballs
Episode 47
The Red Throne
Episode 48
Betty
Episode 49
Bad Timing
Episode 50
Lemonhope (1)
Episode 51
Lemonhope (2)
Episode 52
Billy's Bucket List
Episode 1
Wake Up
Episode 2
Escape from the Citadel
Episode 3
James II
Episode 4
The Tower
Episode 5
Sad Face
Episode 6
Breezy
Episode 7
Food Chain
Episode 8
Furniture & Meat
Episode 9
The Prince Who Wanted Everything
Episode 10
Something Big
Episode 11
Little Brother
Episode 12
Ocarina
Episode 13
Thanks for the Crabapples, Giuseppe!
Episode 14
Princess Day
Episode 15
Nemesis
Episode 16
Joshua & Margaret Investigations
Episode 17
Ghost Fly
Episode 18
Everything's Jake
Episode 19
Is That You?
Episode 20
Jake the Brick
Episode 21
Dentist
Episode 22
The Cooler
Episode 23
The Pajama War
Episode 24
Evergreen
Episode 25
Astral Plane
Episode 26
Gold Stars
Episode 27
The Visitor
Episode 28
The Mountain
Episode 29
Dark Purple
Episode 30
The Diary
Episode 31
Walnuts & Rain
Episode 32
Friends Forever
Episode 33
Jermaine
Episode 34
Chips & Ice Cream
Episode 35
Graybles 1000+
Episode 36
Hoots
Episode 37
Water Park Prank
Episode 38
You Forgot Your Floaties
Episode 39
Be Sweet
Episode 40
Orgalorg
Episode 41
On the Lam
Episode 42
Hot Diggity Doom
Episode 43
The Comet
Episode 1
Bonnie and Neddy
Episode 2
Varmints
Episode 3
Cherry Cream Soda
Episode 4
Mama Said
Episode 5
Football
Episode 6
Stakes: Marceline the Vampire Queen (1)
Episode 7
Stakes: Everything Stays (2)
Episode 8
Stakes: Vamps About (3)
Episode 9
Stakes: The Empress Eyes (4)
Episode 10
Stakes: May I Come In? (5)
Episode 11
Stakes: Take Her Back (6)
Episode 12
Stakes: Checkmate (7)
Episode 13
Stakes: The Dark Cloud (8)
Episode 14
The More You Moe, The Moe You Know (1)
Episode 15
The More You Moe, The Moe You Know (2)
Episode 16
Summer Showers
Episode 17
Angel Face
Episode 18
President Porpoise Is Missing!
Episode 19
Blank Eyed Girl
Episode 20
Bad Jubies
Episode 21
King's Ransom
Episode 22
Scamps
Episode 23
Crossover
Episode 24
The Hall of Egress
Episode 25
Flute Spell
Episode 26
The Thin Yellow Line
Episode 27
Episode 27
Episode 28
Episode 28
Episode 29
Episode 29
Episode 30
Episode 30
Episode 31
Episode 31
Episode 32
Episode 32
Episode 33
Episode 33
Episode 34
Episode 34
Episode 35
Episode 35
Episode 36
Episode 36
Episode 37
Episode 37
Episode 38
Episode 38
Episode 39
Episode 39
Episode 1
Orb
Episode 2
Elements: Skyhooks (1)
Episode 3
Elements: Bespoken For (2)
Episode 4
Elements: Winter Light (3)
Episode 5
Elements: Cloudy (4)
Episode 6
Elements: Slime Central (5)
Episode 7
Elements: Happy Warrior (6)
Episode 8
Elements: Hero Heart (7)
Episode 9
Elements: Skyhooks II (8)
Episode 10
Abstract
Episode 11
Ketchup
Episode 12
Fionna and Cake and Fionna
Episode 13
Whispers
Episode 14
Three Buckets
Episode 15
Episode 15
Episode 16
Episode 16
Episode 17
Episode 17
Episode 18
Episode 18
Episode 1
The Wild Hunt
Episode 2
Always BMO Closing
Episode 3
Son of Rap Bear
Episode 4
Bonnibel Bubblegum
Episode 5
Seventeen
Episode 6
Ring of Fire
Episode 7
Marcy & Hunson
Episode 8
The First Investigation
Episode 9
Blenanas
Episode 10
Jake the Starchild
Episode 11
Temple of Mars
Episode 12
Gumbaldia
Episode 13
Come Along With Me
Episode 14
Episode 14
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