The BEST episodes of Adventure Time season 3

Every episode of Adventure Time season 3, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Adventure Time season 3!

Adventure Time follows two best friends: Finn (a 12-year old boy) and Jake (a wise 28-year-old dog with magical powers), and the surreal adventures undertaken by the duo as they traverse the mystical Land of Ooo. A world built for adventure, Ooo is filled to the brim with various landscapes for the two buddies to explore and bizarre characters to assist.

Last Updated: 12/4/2024Network: Cartoon NetworkStatus: Ended
What Was Missing
star
8.69
1009 votes

#1 - What Was Missing

Season 3 - Episode 10 - Aired 9/26/2011

Finn and his friends must come together as a genuine band in order to open the gate of the Door Lord and get back their taken items.

Directors: Larry Leichliter
Watch Now:AmazonApple TV
Thank You
star
8.57
864 votes

#2 - Thank You

Season 3 - Episode 17 - Aired 11/23/2011

The Snow Golem visits the Fire Kingdom and finds an unlikely follower.

Directors: Larry Leichliter
Watch Now:Amazon
Holly Jolly Secrets (2)
star
8.52
535 votes

#3 - Holly Jolly Secrets (2)

Season 3 - Episode 20 - Aired 12/5/2011

The Ice King summons an army of snowmen to recover the secret tapes Finn and Jake are watching. They must work against the clock to find out the secrets enclosed within.

Directors: Larry Leichliter
Watch Now:Amazon
Incendium
star
8.34
686 votes

#4 - Incendium

Season 3 - Episode 26 - Aired 2/13/2012

Jake embarks on a solo mission to help a broken-hearted Finn.

Directors: Larry Leichliter
Watch Now:Amazon
Dad's Dungeon
star
8.25
644 votes

#5 - Dad's Dungeon

Season 3 - Episode 25 - Aired 2/6/2012

Jake's dad presents a strange challenge to the guys when he appears to them in a holographic message, telling them about a dungeon he made for them.

Directors: Larry Leichliter
Watch Now:Amazon
Marceline's Closet
star
8.24
761 votes

#6 - Marceline's Closet

Season 3 - Episode 21 - Aired 12/12/2011

Finn and Jake play Cloud Hunt in Marceline's house, but they get trapped in her closet after she comes home.

Directors: Larry Leichliter
Watch Now:Amazon
Too Young
star
8.17
938 votes

#7 - Too Young

Season 3 - Episode 5 - Aired 8/8/2011

The Earl of Lemongrab takes over the Candy Kingdom due to Princess Bubblegum's age regression, forcing her and Finn to try and get rid of him even if it means a life-altering decision.

Directors: Larry Leichliter
Watch Now:AmazonApple TV
Memory of a Memory
star
8.14
859 votes

#8 - Memory of a Memory

Season 3 - Episode 3 - Aired 7/25/2011

Finn and Jake enter Marceline's mind to awaken her from a sleep spell she had cast on herself, without knowing that they are being tricked by a person from her past.

Directors: Larry Leichliter
Watch Now:AmazonApple TV
The Creeps
star
8.13
788 votes

#9 - The Creeps

Season 3 - Episode 12 - Aired 10/17/2011

Finn and Jake receive an invitation to a masquerade dinner. It turns into a whodunit as guests start to meet their demise.

Directors: Larry Leichliter
Watch Now:Amazon
Fionna and Cake
star
8.07
990 votes

#10 - Fionna and Cake

Season 3 - Episode 9 - Aired 9/5/2011

In this gender-swapped episode, Fionna and Cake must battle the evil Ice Queen.

Directors: Larry Leichliter
Watch Now:AmazonApple TV
Ghost Princess
star
8.07
588 votes

#11 - Ghost Princess

Season 3 - Episode 24 - Aired 1/30/2012

Finn and Jake play detective and try to solve Ghost Princess' murder.

Directors: Larry Leichliter
Watch Now:Amazon
The New Frontier
star
7.98
628 votes

#12 - The New Frontier

Season 3 - Episode 18 - Aired 11/28/2011

Jake dreams about his death, and Finn takes action when events from the dream start to come true.

Directors: Larry Leichliter
Watch Now:Amazon
Wizard Battle
star
7.98
737 votes

#13 - Wizard Battle

Season 3 - Episode 8 - Aired 8/29/2011

Finn and Jake enter a competition for wizards in disguise so they can prevent Ice King from winning the grand prize: a kiss from Princess Bubblegum.

Directors: Larry Leichliter
Watch Now:AmazonApple TV
No One Can Hear You
star
7.93
703 votes

#14 - No One Can Hear You

Season 3 - Episode 15 - Aired 11/14/2011

Finn awakens after an accident to find the Candy Kingdom citizens mysteriously gone and Jake acting crazier than usual.

Directors: Larry Leichliter
Watch Now:Amazon
Still
star
7.84
698 votes

#15 - Still

Season 3 - Episode 7 - Aired 8/22/2011

Finn and Jake are literally unable to move and are at the mercy of the Ice King.

Directors: Larry Leichliter
Watch Now:Apple TV
Hitman
star
7.83
807 votes

#16 - Hitman

Season 3 - Episode 4 - Aired 8/1/2011

The grounded Ice King hires a fire-manipulating hitman to attack Finn and Jake, without realizing the potentially deadly consequences.

Directors: Larry Leichliter
Watch Now:Apple TV
Beautopia
star
7.81
695 votes

#17 - Beautopia

Season 3 - Episode 14 - Aired 11/7/2011

Susan Strong asks Finn and Jake to help fight off the Glub Glubs in the sewers below to regain her people's home in Beautopia.

Directors: Larry Leichliter
Morituri te Salutamus
star
7.80
810 votes

#18 - Morituri te Salutamus

Season 3 - Episode 2 - Aired 7/18/2011

The duo choose to partake in gladiatorial combat against the Fight King's ghost warriors, but Finn succumbs to bloodlust while Jake becomes obsessed in keeping a cool morale.

Directors: Larry Leichliter
Watch Now:Apple TV
Conquest of Cuteness
star
7.75
844 votes

#19 - Conquest of Cuteness

Season 3 - Episode 1 - Aired 7/11/2011

Finn and Jake must defend their home from the Cuties, a tiny race who believe themselves to be evil, destructive invaders.

Directors: Larry Leichliter
Watch Now:Apple TV
Jake vs. Me-Mow
star
7.71
716 votes

#20 - Jake vs. Me-Mow

Season 3 - Episode 16 - Aired 11/21/2011

Finn and Jake take on a request to protect Wildberry Princess from an unknown assassin. The assassin turns out to be a tiny cat assassin called Me-Mow, who ends up bribing Jake by poisoning him.

Directors: Larry Leichliter
Watch Now:Apple TV
From Bad to Worse
star
7.66
744 votes

#21 - From Bad to Worse

Season 3 - Episode 13 - Aired 10/24/2011

When another plague of Candy Zombies arises and Princess Bubblegum is among the undead, Finn and his friends are in a race against time to figure out how to stop it...without making things even worse!

Directors: Larry Leichliter
Watch Now:Apple TV
Holly Jolly Secrets (1)
star
7.62
595 votes

#22 - Holly Jolly Secrets (1)

Season 3 - Episode 19 - Aired 12/5/2011

Finn and Jake find the Ice King's video diary and have a chance to unearth his secrets.

Directors: Larry Leichliter
The Monster
star
7.62
691 votes

#23 - The Monster

Season 3 - Episode 6 - Aired 8/15/2011

The king and queen of Lumpy Space ask Finn and Jake to bring their daughter back home. At the same time, they attempt to stop a "monster" from destroying a village.

Directors: Larry Leichliter
Watch Now:Apple TV
Paper Pete
star
7.57
571 votes

#24 - Paper Pete

Season 3 - Episode 22 - Aired 1/16/2012

Library books seek help from Finn and Jake to save them from the evil Moldari.

Directors: Larry Leichliter
Apple Thief
star
7.41
698 votes

#25 - Apple Thief

Season 3 - Episode 11 - Aired 10/3/2011

When Tree Trunks's apples go missing, she, Finn and Jake descend into the dark side of the Candy Kingdom in order to find the thief.

Directors: Larry Leichliter
Watch Now:Apple TV