The Tower

Synopsis
Finn is not happy with his replacement arm, so he builds a tower into space to find his father and take revenge by punching him and stealing his favourite arm.

Plot
The episode starts with Finn trying to make spaghetti with a bulky candy arm. As he continues to mess things up, he gets frustrated and his candy arm explodes. Jake comes down stairs and tells him that he should just take his time and listen to his "Melon Heart." Finn then says he wants to go to space so he can take his father's arm. Jake tells him not to do this but to just relax and think and that he's going to the store to buy replacement kitchen supplies for the ones Finn broke. As he lies on the ground, Finn notices a pile of rocks forming behind him and that there is a odd, sightly transparent, arm where his used to be. He then decides to use this arm to build a tower into space to find his dad.

As Jake is returning home, the tower has grown considerably and Princess Bubblegum is there and tells Jake that Finn's new arm, what she believes to be a telekinetic electro-emotional prosthesis is dangerous and could hurt him and other people around him. Jake shakes off the notion and says what Finn's doing is healthy and he should just be left alone. As Finn continues his tower he enters the cloud house of a Cloud person. She tells Finn to leave, and when he doesn't, blasts him with lightning. This moves the house out of the tower and the cloud person then says that Finn must be, "One of those swimmers," and leaves. The next day large chunks of Ooo's landscape are missing because of the tower, including a rookery of penguins. The cloud person from the day prior returns to Finn and apologizes and asks if he's really going to take his father's arm. Finn states that he is and the cloud person talks about how she was water once and how swimmers would always be swimming in her, so she got out of there and became air. She then tells Finn he should let it go, runaway, and hate his life like the cloud person has.

On the ground BMO asks Jake what Finn is doing (not before getting crushed into the ground by a falling ice block.) Jake says Finn's just working some stuff out and that it's completely healthy, which is directed at PB who is working on some sort of device. PB disagrees and says that Finn could get hurt. As Finn's tower has finally reached the atmosphere, the cloud person from before asks what it's like up there and wonders if she should become space ice. Finn, who is extremely oxygen deprived, sees a similar looking portal to the one the Void Caster made in "Escape from the Citadel", but suddenly a bright light comes at him and he blacks out. Finn then wakes up in what seems to be a space ship and walks to the next room to see his 'father' watching TV. Finn punches his father into unconsciousness and tries to take his arm. As Martin moans, Finn changes his mind and it is revealed that Martin was really a disguised PB. She says she tricked Finn and took him to the Candy Kingdom Bunker, and since he had so little oxygen that he was already hallucinating, the trick was easy to pull off.

Finn returns home, with his new arm gone, and tells Jake that he's calmed down. Jake says that's great and asks if Finn wants to do the honors of taking down the tower. Finn says he would and removes a plank of wood from the bottom, which causes the tower to collapses sideways destroying a large chuck of PB's castle and continuing onward, to the shock of Finn and Jake. The episode ends with PB screaming, "AHHH! MY ARM!"

Main characters

 * Finn
 * Jake
 * Princess Bubblegum
 * Carol

Minor characters

 * BMO
 * Penguins
 * Banana Guard
 * A deer
 * Snail

Mentioned characters

 * Martin
 * Banana Man

Songs
TBA

Trivia

 * When Finn was building the tower, it seems like he took some of the Candy Kingdom, Fire Kingdom, and Ice Kingdom's pieces as part of the tower.
 * Bubblegum was able to create a duplicate of Martin even though she technically shouldn't know what he looks like.
 * At the end of the episode, Princess Bubblegum injures her arm after the tower is knocked down by Finn, collapsing into the Candy Kingdom.
 * It is unknown whether the collapse of the tower onto the Candy Kingdom caused other injuries or even deaths.
 * Finn's voice is deeper than it was in the last episode.
 * At the end of the episode, Finn's shadow is depicted with two arms. Whether this is intentional is unknown.
 * This episode reveals that Princess Bubblegum has the capability to produce spaceworthy craft in a matter of days.

Cultural references

 * This episode may be a reference to the  from the Holy Bible, a structure built to reach the heavens.
 * The block of soil Finn uses to build the tower is similar to the ones used in the video game .

Episode connections

 * The way Princess Bubblegum impersonated Martin (with modified voice) was similar to Finn changing his voice/appearance to be Davey in the episode of the same name.
 * When the tower accidentally fell on the candy kingdom it has injured princess bubblegum's arm which may have resulted her possible future shown on the comics Adventure time #7, page 13-14 and onwards.

Errors

 * Near the ending when finn aproached jake and the deer finns shadow showed that he had 2 full arms insted of 1 and a flower arm.