King Worm (episode)

Synopsis
Finn has a vivid dream that may be more than it seems.

Plot
The episode starts with Finn waking up to Princess Bubblegum calling him her king and husband. He then realizes he is on the Candy Throne wearing a crown and is being watched by a group of Banana Guards. His crown floats to the ceiling and when he looks at the group of Banana Guards again, they are upside-down. He looks over at Princess Bubblegum's shoulder and sees the King Worm; it jumps out of the window and the scene changes. Finn is sitting with Flame Princess, who calls him "honey" and tells him to eat his soup. He doesn't respond quickly and Flame Princess angrily yells for him to "Eat it now!" He eats some of it and closes his eyes and the room morphs to a room like one in the Tree Fort. Flame Princess's eyes turn into mouths for a brief moment and she soon changes into Peppermint Butler, holding the King Worm,Peppermint Butler then grows a second head and explains that Finn is trapped in a dream.His face then becomes blurry and a worm-like creature appears from his sleeve and explains to Finn that he needs to find the worm and break it. Finn points out that Peppermint Butler is holding the worm, but it turns into a spoon.Phil pops up behind Peppermint Butler and Peppermint Butler throws the spoon at Finn, and then Finn notices Jake in another room through a window. Jake is wrapping a gift with Lady Rainicorn, who has two mouths and is speaking English in a very deep voice. Finn sees King Worm escaping through a small hole in the wall and jumps in the room after it. He and Jake start to talk and they realize that they are in a linked dream with one another. Jake states that he doesn't think Lady Rainicorn is real and they decide to follow the worm through the hole, which is a problem because the hole is too small.

Jake explains that because it is a dream, Finn can do whatever he wants. He then imagines a sword capable of blasting a hole in the wall and is happy with himself for not dreaming up weird stuff. The sword then turns into a shark and Finn freaks out.Jake tells him that he needs to be careful, because if he fills the world with his subconscious fears it will fall apart. Jake tells him to just shrink down and the two of them go through the worm's hole. They wind up in a field with Ice King running towards them. Ice King calls them Fionna and Cake and tells them that he's really made a mistake. Finn and Jake are confused until two monsters made up of a bunch of penguins show up. Finn and Jake run away until they find their dad, Joshua, who isn't responding to anything they say. Joshua starts knitting, and eventually his knitting turns into the King Worm. King Worm then bolts to a nearby mountain and Finn imagines that he and Jake have gigantic legs.Jake complains that it is boring for him as it is his normal power,so Finn imagines that he has a bird instead of legs.As they chase after King Worm, it starts raining Lumpy Space Princesses. When they reach the top, they find a frozen King Worm. They grab a nearby rock that appeared from nowhere, break the worm, and the dream fades away.

Finn and Jake wake up in their room and start asking one another if they're okay, and celebrate that they did it. Finn then notices a mirror wavering in the background, and upon closer inspection realizes his reflection is Alternate Universe Finn. Jake then tells him that it's fine, but when he turns his nose is huge.Finn then points at a mug filled with liquid that's falling to the floor, breaking and then reversing back to its initial state repeatedly. Finn realizes that Jake pinched him earlier, but he never pinched Jake back. He starts trying to pinch him, but Jake backs away telling him that everything is fine. When Finn finally catches and pinches Jake, his skin melts away and Finn realizes for sure that he's still dreaming. King Worm then rises from the melted Jake, and says that Finn can't defeat him. Finn starts to attack, but realizes something is missing and gets depressed. The ceiling cracks and a chunk falls on King Worm's head. He tells Finn to "knock it off" which causes Finn to remember what Jake said about fears breaking down dream-scapes.

Finn concentrates on his deepest fears and saltwater begins to pour from his navel and fill up the room. The Lich then crawls out of his bellybutton and Finn freaks out. The clearly deteriorating worm tells him to calm down, to which he replies, "Never!" Princess Bubblegum comes out next and Finn starts to feel relieved until she tells him to quiet down because she's having coffee with The Lich and he wouldn't understand because he's "too young." This freaks him out even more, and causes more damage to the worm. He then goes into a crib and remembers Ghost Lady and continues to be horrified as the worm deteriorates to near nothing. He asks the King Worm to stop one final time, but the worm claims he doesn't know what Finn is talking about. Finn strains and a clown pops out of his navel. The dream breaks and Finn is with Jake in his living room with the shriveled King Worm and his minions; the minions suddenly explode. Finn then orders the worm to get out of his house, and the worm complies meekly. Finn pinches Jake to be sure he's awake, and the episode ends.

Major characters

 * Finn
 * Jake
 * King Worm

Dream characters

 * Princess Bubblegum
 * Peppermint Butler
 * Shark Sword
 * Ice King
 * Ice Penguin Monsters
 * Joshua
 * Flame Princess
 * Ghost Lady
 * Lady Rainicorn
 * Phil
 * The Lich
 * Banana Guards
 * Lumpy Space Princesses
 * Fear Feaster
 * BMO
 * Jake (First Jake)

Minor characters

 * Snail
 * Worms

Mentioned

 * Fionna
 * Cake

Trivia

 * In this episode why do Flame Princess appeared, do Finn knows Flame Princess in Seoson 1?
 * In the scene where Finn and Jake first encounter the frozen King Worm his face can be seen, but its face disappears as they are breaking it.
 * The sword that Finn conjures in his dream has the same appearance as the sword from the Adventure Time logo, except with minor color differences.
 * When Phil appears he says, "Satori," which is a term used to define a deep meditative state in which an individual becomes enlightened.
 * The music in the long preview was used in the "Burning Low" trailer.
 * This is the first episode Flame Princess is in that does not have a fire related title.
 * Symbols used below the promo art are examples of optical illusions.
 * This is the first episode where Finn calls Peppermint Butler by Pep But.
 * Almost all of the major characters are seen in this episode, the only major character not seen is Marceline.
 * Lady Rainicorn speaks English in this episode.
 * The scarf that Joshua knits looks similar to the scarf that Tree Trunks knitted in Legends of Ooo.
 * The scarf that Joshua knits looks similar to the scarf that Tree Trunks knitted in Legends of Ooo.

Cultural references

 * Some of the scenes were inspired by Youtube Poops.

Episode connections

 * Finn's fears are all things that have been mentioned in past episodes:
 * Fear Feaster and the Ocean from "Ocean of Fear."
 * The Lich from "Mortal Folly."
 * Princess Bubblegum saying that Finn is "too young" from the song My Best Friends in the World in "What Was Missing." And Jake telling Finn that he is "too young" for Princess Bubblegum multiple times in the series.
 * The Ghost Lady from "The Creeps."
 * Clowns, such as in "Another Way."
 * Likewise, Finn's dream seems to foreshadow future events:
 * When Finn sees himself in the mirror, his face resembles the face of Earl of Lemongrab, as well as the face BMO had at the end of his dream in "B-Mo Noire." Also, his arm is mechanical as seen previously in Finn's meditation vision of himself in "Mortal Folly." This vision foreshadow's Finn in the "alternate universe" in the final scene of "The Lich".
 * The Gunter monster foreshadows the events of "Reign of Gunters".
 * When Finn turned his and Jake's feet big is dreamed again by Jake in "The Lich" where he got big feet.
 * Ice King refers to Finn and Jake as Fionna and Cake, without knowing the difference. This foreshadows the second episode of Fionna and Cake in season 5.
 * When Finn is transported to the library and is looking in at Jake and Lady Rainicorn through the window, the bookshelves contain the books, whose titles end in "-itties," from "Paper Pete."
 * The shape of Lady Rainicorn's second mouth is very similar to the design from the Animated Short.
 * When the dream is broken, the background and character positions are similar to the scene at the end of "Evicted!"
 * When Finn was going to pinch Jake the song from the title song "His Hero" played.
 * That Jake gives Lady a gift is foreshadowing that Jake gives puppies to Lady Rainicorn that get born in the next season.

Production notes

 * The episode was originally titled "Worm King."

Videos
Adventure Time - King Worm (short preview)|Short Preview Adventure Time - King Worm (long preview)|Long Preview "Worm King" Animatic|An animatic.