|The Trouble With Doubles|
|Season 1, Episode 19|
|Air date||April 25, 2011|
|Written by||Lisa Muse Bryant|
|Directed by||Eric Dean Seaton|
"Journey to the Center of Mt. Spew"
The Trouble With Doubles is the nineteenth episode of Season 1.
Boomer and Brady discover Vault 14, a secret vault which protects Kinkow's most mysterious and powerful artifacts including Duplicatus Plantus, a plant that copies anything it touches. The kings make clones of themselves and while they go surfing, they send their doubles to the Kalooki Island Peace Summit. Filling in for the brothers, the clones impress Mikayla, the island dignitaries and the other Kinkowians with their intelligence, hygiene, and professionalism. However, when Brady and Boomer overhear the clones' ultimate plan to takeover, the kings must figure out how to get rid of their doubles and take back their kingdom.
The kings come downstairs, trying to avoid getting caught having avocado facials. When they hear Mason and Mikayla walking in, they hide. Mason, believing that the coast is clear, types 1/1/8 into the vault and shows Mikayla Vault 14, a secret vault where many treasures are kept.
The next day, Mikayla tells Boomer and Brady about the Peace Summit in a couple of days, but they think it sounds boring. When Mikayla leaves, the kings enter Vault 14 and find Duplicatus Plantus, a giant plant that bites Boomer. A clone of Boomer comes out of a cacoon created by the plant. Brady makes a clone of himself too, so they don't have to attend the Peace Summit.
Upstairs, the kings try to show the clones how to be like them, but they already know. However, the clones are much more mature then the kings. They also love to drink and absorb water. The kings send them to the Peace Summit, but Mason catches Brady and Boomer trying to go surfing. He tells them to get dressed and get to the Peace Summit. He walks into the plaza and is amazed to see them (the clones) dressed in their robes.
The clones impress Mikayla with their maturity. Mason suspects something is wrong, but he doesn't know what. Brady and Boomer watch from above. Boomer is mad because the clone is stealing his dance moves, and when Brady sees his clone hugging Mikayla he decides they have to put a stop to it. They tell the clones they know what's going on, and the clones believe they've caught on to their plan to take over Kinkow. They lock the kings in Vault 14.
In the vault, the kings discover that copies made by Duplicatus Plantus will double-cross their hosts. They make a bunch of copies of themselves and use them to make a human ladder, reaching up to an air vent that leads to their room.
When the kings get up to their room they attack the copies, Mikayla comes in with the guards and breaks up the fight. She asks them questions that test their maturity, and she sends the mature ones, which are the copies, to the dungeon.
Later, the kings try to break into Vault 14, but can't guess the code. They try Mikayla's birthday, and the door opens up to reaveal a copy of Mikayla guarding the vault.
Fake Brady: Mason you're here just in time.
Brady: No, he's the fake, Mason. Get him.
Boomer: Thats right, he's a fake too!
Fake Boomer: Who are you calling a fake, you phony.
Lanny: There is only one way to make sure...Slay them all.
Mikayla: Don't worry, daddy. They fooled me once, but they won't get me again. Guards... * to Brady *Any last words?
Fake Brady: Mikayla, it's me Brady. Don't you know me?
Mikayla: And you?
Brady: You can machete me, but you can never machete our love.
Mikayla: Ugh. Alright it's him, arrest the other one... Boomer, I forgot to tell you that Beyonce called.
Fake Boomer:* scoffs * Nice try, you're lying.
Boomer: Ooh, I knew she'd get my letters. Phone me!
Mikayla: I'm sorry, Daddy, I let my guard down. I just wanted the kings to be normal.
Mason: Normal is gonna take some time, baby.
Boomer: We can hear you!
Mason: We know.
In Boomer's fantasy Mikayla tells him he is her favourite King.
Boomer seems to have a crush on Mikayla in this episode.