#1 - Simon and Marcy 8.97
Season 5 - Episode 14
A look at what Ice King and Marceline were like 996 years ago.
#2 - I Remember You 8.94
Season 4 - Episode 25
The Ice King and Marceline bond over song and memories.
#3 - What Was Missing 8.66
Season 3 - Episode 10
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.
#4 - Be More 8.59
Season 5 - Episode 28
BMO accidentally deletes his core system files. Finn and Jake disguise themselves as MOs to infiltrate the MO factory and save BMO from a memory wipe.
#5 - Betty 8.57
Season 5 - Episode 48
After a magic spell backfires, the Ice King reverts back to Simon, and seeks help from Finn, Jake, and Marceline in order to get Betty, his former fiancée, back.
#6 - Islands, Part 8: The Light Cloud 8.57
Season 8 - Episode 14
Finn confronts the power behind Founders Island, but will he ever return home to Ooo?
#7 - Holly Jolly Secrets (2) 8.56
Season 3 - Episode 20
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.
#8 - Thank You 8.56
Season 3 - Episode 17
The Snow Golem visits the Fire Kingdom and finds an unlikely follower.
#9 - The Vault 8.56
Season 5 - Episode 34
When Finn starts sleepwalking and dreaming about the Green Lady he filed away in his memory vault, Jake and BMO help him tap into his repressed memories to uncover a secret past. Who is the Green Lady? And how is she connected to Finn?
#10 - Is That You? 8.53
Season 6 - Episode 19
Following an ally's memorial service, Jake begins acting strangely.
#11 - The Lich (1) 8.52
Season 4 - Episode 26
A visit from the Lich King sheds light on Ooo's secrets.
#12 - Incendium 8.52
Season 3 - Episode 26
Jake embarks on a solo mission to help a broken-hearted Finn.
#13 - Escape From the Citadel 8.50
Season 6 - Episode 2
Finn and Jake follow the Lich to the Citadel, where Finn meets his long lost dad. But just how far does the apple fall from the tree?
#14 - Puhoy 8.47
Season 5 - Episode 16
Finn dreams he is in a pillow world where he marries a pillow woman and has two children with her.
#15 - Fionna and Cake 8.47
Season 3 - Episode 9
In this gender-swapped episode, Fionna and Cake must battle the evil Ice Queen.
#16 - Islands, Part 6: Min and Marty 8.46
Season 8 - Episode 12
An unexpected revelation from Susan leads Finn closer to answers about his past.
#17 - Mortal Recoil (2) 8.46
Season 2 - Episode 25
The Princess isn't feeling well and Jake starts to worry something might be wrong with her.. The Ice King is anxious to help, but does Finn trust him?
#18 - Billy's Bucket List 8.44
Season 5 - Episode 52
Finn finds the hero Billy's bucket list and decides to complete the unfinished items as a final tribute.
#19 - Burning Low 8.43
Season 4 - Episode 16
Princess Bubblegum may be jealous when Finn start hanging out with Flame Princess.
#20 - Jake the Dog (3) 8.43
Season 5 - Episode 2
Finn and Jake chase the Lich through a dimensional portal and meet a wishmaster. After the Lich wishes that humanity never existed, Finn wishes that the Lich never existed.
#21 - Islands, Part 7: Helpers 8.40
Season 8 - Episode 13
Finn and his friends journey to a last refuge called Founders Island.
#22 - All the Little People 8.39
Season 5 - Episode 5
Finn receives a bag full of miniature versions of his friends.
#23 - Too Young 8.39
Season 3 - Episode 5
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.
#24 - Dad's Dungeon 8.39
Season 3 - Episode 25
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.
#25 - Blade of Grass 8.38
Season 5 - Episode 45
Finn and Jake decide it's time for Finn to get a new sword. Finn reluctantly buys a grass sword from a mysterious old man, but the sword turns out to be cursed! And unfortunately for our hero, all sales are final.