(The episode begins in the Candy Kingdom, Jake is playfully chasing Lady Rainicorn)

Jake: Yeah, you think you're pretty way up there but I can get you!

Lady Rainicorn: 나 잡아봐봐~ ("Catch me if you can.")

(Finn and Princess Bubblegum are in a cemetery with a table full of different chemicals)

Princess Bubblegum: Let me just add three more drops of explosive diarrhea.

(She adds the explosive diarrhea and a giant cloud shaped like a skull puffs out)

Finn and Princess Bubblegum: Oooo...

Finn: Hey Princess Bubblegum, when we bring the dead back to life will it be filled with worms?

Princess Bubblegum: No. If the descorpirator serum works all the dead Candy People  will look as young and healthy as you do.

(Finn does a "Tarzan-yell")

Princess Bubblegum: Pick up that platter, tough guy.

(Finn picks up a serving platter and open the lid, revealing a Candy Person corpse)

Finn: Old Mr. Cream Puff?

Princess Bubblegum: (Giggles) We used to date. (Applies the serum)

(Mr. Cream Puff's corpse starts to glow and overflow with the serum)

Finn: Something's happening! Come on, come on...

Princess Bubblegum: Work.

(A zombie Mr. Cream Puff arises and moans)

Finn: Algebraic!

Princess Bubblegum: Wait, something's wrong.

Zombie Mr.Cream Puff: Sugar! (Squirts serum out of his eyes and mouth)

Finn and Princess Bubblegum: Ew!

(Zombie Mr. Cream Puff leaps into a giant test tube. The test tube falls and infects the whole cemetery. Zombie Candy People begin to arise from their graves)

Finn: Hey look, the decorpsinator serum is working!

Princess Bubblegum: No, this is wrong. They're not coming back to life--they're still dead! The decorpsinator serum--it's incomplete!

Zombie: Must eat sugar!

Finn: (Pushes him back down) You're grounded, Mister.

Princess Bubblegum: Oh, this is really bad. They're going to be attracted to the Candy Kingdom!

Finn: Why?

Princess Bubblegum: Because the Candy People are made of sugar, ya ding dong!

Zombie Mr. Cream Puff: (On Princess Bubblegum) Give me some sugar, baby.

Finn: Chew on this! (Kicks him)

Princess Bubblegum: (Giggles) Good one, Finn. Quickly, to the kingdom!

(They run out of the cemetery)

Finn: (Kicks another zombie) Get a life!

(Princess Bubblegum is at the top of her castle, ringing a large bell)

Princess Bubblegum: All citizens of the Candy Kingdom! Report to the palace, immediately!

(Candy People mumble in confusion and walk to the palace)

Jake: Whoa!

(Jake and Lady go off to the palace)

Princess Bubblegum: Hurry, sweet citizens.

Finn: Alright, you heard the princess, everyone in! alright no pushing, come on!

Jake: Dude, what's up?

Finn: The princess will explain everything. Tree Trunks , get those hot buns in here, girl.

Tree Trunks: (Carrying hot cross buns) Oh, I hope it's not bad news.

(Princess Bubblegum and Finn close the door)

Finn: Did we get everyone?

Manfried: All present and accounted for.

Finn: Thanks, Manfried

Manfried: You're welcome.

Princess Bubblegum: Citizens, we are assembled here in the candy foyer for a momentous announcement. Tonight we are all going to have... a slumber party!

Finn: What?!

(Crowd cheers)

Finn: Wait! what about the zom-- (Princess Bubblegum covers his mouth)

Princess Bubblegum: Go ahead and start partying.

Finn: (Voice muffled) But, Princess, the undead--

Princess Bubblegum: (Carries Finn to the lab) We'll be right back everyone.

Jake: Whooo!

(In the lab)

Princess Bubblegum: Finn, the Candy People can't know about the zombies.

Finn: Wha?

Princess Bubblegum: If they knew, they would flip out.

Finn: What do you mean, "flip out?"

Princess Bubblegum: I mean they would flip out.

(Scene changes to the cemetery; Starchy arrives with a shovel)

Starchy: Princess? It's me, Starchy the gravedigger. I brought you a larger corpse shovel. Oh, Princess? Well, I'll just wait for you here, then. By the mausoleum. With my back turned. And my defenses lowered.

(A Candy Zombie comes out of the mausoleum and goes up to Starchy, Starchy starts to scream and gasp and then he explodes in a flash of light, back at the castle)

Finn: Candy People explode when they get scared?!

Princess Bubblegum: Not telling the Candy People about the zombies is so important that you need to promise,Royal Promise, not to let anyone find out about the zombies, ever.

Finn: Okay, sure.

Princess Bubblegum: No, Finn. You have to Royal Promise.

Finn: Yes, I Royal Promise.

Princess Bubblegum: Now I must cloister myself in the lab and finish the equation for my decorpsinator serum. You keep the candy folk distracted and ignorant. Can you do that?

Finn: Yes, your highness.

Princess Bubblegum: Good. Don't tell anyone about the zombies. Never ever. (She leaves)

Finn: No, wait. Can I at least tell (Jake enters) Jake?

Jake: Tell me about what, dude?

Finn: You know, about the outbreak of zom-- (Covers his mouth)

Jake: (Chuckles) Alright, what's going on?

Finn: Uhh, nothing at all, buddy! (Laughs awkwardly and skips into the foyer)

Jake: Hey, dude. I think you and Bubblegum are up to something.

Finn: Ahha ah, what? No, no way.

Jake: Whoa, you guys are up to something. Is it some sort of prank? Can I get in on it?

Finn: (To party-goers) Who wants to play "Truth or Dare"?

Jake: Hmm...

Finn: Ok, Chocoberry, you may ask someone to tell a deep truth or a saucy dare.

Chocoberry: Mr. Cupcake, truth or dare?

Mr. Cupcake: Dare.

Chocoberry: I dare you to take off your wrapper.

(Everyone goes "Oooh")

Jake: (Shoulders Finn) Hey seriously, man. I'm your bro. Bros are supposed to tell bros everything all the time. What are you and Bubblegum up to? Is everything alright?

Finn: Yep! Fine! Everything is great! Heh, heh. (Crinkling sound) Except for that. Whoa.

(Mr. Cupcake has shed his wrapper)

Peppermint Butler: I didn't know he was chocolate.

Mr. Cupcake: Jake, truth or dare?

Jake: Truth.

Mr. Cupcake: Do you prefer chocolate or fudge?

Jake: I can't eat chocolate or fudge 'cause I'm a dog and they'd probably kill me, but hmmmmm probably... neither. Finn! Truth or dare?

Finn: Dare! Haha!

Jake: I dare you... to tell me the truth about what's going on in your mind. What were you and Bubblegum talking about when you were alone together?

(Everybody goes "Oooh")

Finn: (Nervously) Umm, ahh, the truth is, ahhh...

(Finn visualizes Princess Bubblegum's face on Jake)

Hallucination of Princess Bubblegum: You promised you wouldn't freakin' tell anyone! Oh, you're so cute, Finn.

Finn: Ahhh... the truth is... that I'd rather play Dodge Socks!

(Finn throws a sock a Jake, Princess Bubblegum's face goes away)

Jake: I'm not playing dodge socks 'til you stop dodging my questions. Hey... (Sniffs socks) Old Mr. Cream Puff? Isn't he dead?

Finn: Hey, give me my sock back! Dodge Socks was a bad idea!

Jake: Whoa. Look dude, just tell me what's up, 'cause you are crazier than a cannonball tonight.

(Finn looks out a window behind Jake and sees the zombies coming)

Finn: (Thinking) Oh, my goodness! Princess hasn't finished the equation and the zombies are here!

Finn: I, uh, she want this slumber party to be super fun, and if I did have something to tell you, then I would in a second, and it would make my life easier, unless there was something stopping me, like a promise, but there isn't, so I won't, so it's cool.

(Zombie arises by the window behind Jake)

Zombie: Sugar!

(Finn shuts the shutters)

Jake: What? You lost me.

Finn: Umm... Hey, you know what time it is?

Jake: Adventure time?

Finn: No, time for Seven Minutes in Heaven! You're first.

Jake: Really?

Finn: Lady Raincorn! In the closet with Jake!

Lady: 뭐? 나? 웃겨 정말. 그래, 좋아. 하자. ("What? Me? You gotta be kidding me. Okay, then. I'll play.")

Jake: Okay, okay, alright. (Closet door closes) But in seven minutes, I'm gonna come out and make you spill your beans, Finn.

Finn: I can't hear you all the way in heaven!

(Finn looks out a window, a horde of zombies shouting "Sugar" comes and begins banging on door)

Chet: Umm, does anyone else hear that?

Finn: What? Hear what? I, I don't hear anything.

(Candy People begin to murmur)

Chet: I hear something I don't understand... and it makes me scared! (Begins to shake)

Finn: What? No, Chet. Everybody, wait. What noise? You mean this noise? (Turns on a radio and party lights comes on)

Chet: Oh. (Laughs)

Finn: Yeah! Dance it! Bust it up! Uh! Uh! Uh! Oh!

(A zombie comes out of the door, Finn rushes to the door, grabbing a table)

Chocoberry: What is this game you are playing right now, Finn?

(Finn barricades the door with the table)

Finn: Uhh, it's... Blockado. Haha, the game of barricades. Come on, let's block all the entrances and windows!

(Candy People cheer and begin blockading the doors and windows before the zombies can come in)

Finn: Alright, this is not a permanent solution. Think Finn, how can you keep everyone from finding out?

Manfried: Find out about what, Finn?

Finn: Manfried, the talking piñata! Your convient appearance gives me a great idea. Everyone, grab a stick! New game! We're gonna smash some piñatas!

Manfried: What?

Finn: Except for you, Manfried.

Manfried: Oh, thank goodness.

(Finn takes somes strips off of Taffy Girl)

Finn: Now everybody don these blindfolds. (Whispering) Thanks, Taffy Girl.

(Finn runs into the middle of the blindfolded Candy People swinging sticks)

Finn: Alright, everybody, get together. I'm hanging the piñatas... (The zombies burst throught the barricades)They're all around you. Smash the piñatas!

(Finn and the Candy People smash all the zombies)

Finn: Yeah! You guys are on fire!

(Chocoberry smashes a zombie, causing candy to fall out)

Chocoberry: Hmmm, it's so delicious.

(All the Candy Zombies are smashed and the Candy People are eating their candy)

Finn: Yes! My improbable planned worked! (Jake and Lady come out of the closet)

Jake: Whew!

Lady: 안녕! ("Hello!")

Jake: Seven minutes up yet? (Grabs a jelly filled doughnut and eats it) Whoa! (Runs to Finn) What the nuts happened here?!

Finn: Oh, we killed all the zombies that Princess Bubblegum and I raised from the dead.

Jake: Really!?

(Time freezes)

Finn: Jake? What's going on?

(Princess Bubblegum enters)

Princess Bubblegum: What? Huh? Oh, Finn! Did you break your Royal Promise?

Finn: Yeah, but, I mean, all the zombies are dead. The Candy People won't freak out. What's the big deal?

Princess Bubblegum: This is really, really bad, Finn. You can't break Royal Promises. Never, ever, never. No matter what, forever.

(The room starts shaking)

Princess Bubblegum: The Guardians of the Royal Promise are coming for us.

(A hand bursts through the ceiling and grabs Finn and Princess Bubblegum and pulls them outside)

Finn and Princess Bubblegum: Whoa!

Guardian 1: Finn the Human. You have broken a Royal Promise for which the penalty is trial by fire.

(Guardian 2 breathes fire)

Finn: That's stupid.

Princess Bubblegum: Wait! He's my friend! Isn't there another option?!

Guardian 1: Yes. Because you care for the promise-breaker, we will give him a less hot trial. You must now answer...

Guardian 2: ...Math questions!

Finn: Mathematical!

Princess Bubblegum: Finn, you're terrible at math.

Finn: Awww.

Guardian 1: Now, solve this! (Puts Finn in front of Guardian 2, who puts up a hologram of an overly complicated math equation)

Finn: Uhh....

Guardian 2: Oh Wait, wait, I thought of a better one. (Replaces the equation with one that says "2+2")

Guardian 1: Yes! Two plus two. Solve it or die.

Finn: Uhh. Four, right?

(Guardians laugh)

Guardian 1: Oh, correct.

(Guardians heads explode and time rewinds, night becomes day, Guardian 2's head comes back and he talks backwards and goes back to sitting and blowing bubbles around the Candy Kingdom)

Finn: What's happening, Princess?

Princess Bubblegum: You've defeated the broken royal promise! The Gumball Guardians are resetting!

(Guardian 1 drops Finn and Princess Bubblegum, who teleport back to Princess Bubblegum's lab)

Finn: Slamacow! That was tops! Who's not good at math? I was all "Four!"

Princess Bubblegum: Four, four... Four, four, four... That's it! The answer was so simple, I was too smart to see it!

Finn: You're welcome!

Princess Bubblegum: '4' is the last figure I need to perfect my decorpsinator serum.

(In the foyer, Princess Bubblegum pours the serum on a zombie)

Revived Zombie: Golly!

(Finn and Princess Bubblegum pour the serum on all the zombies)

Finn: Woohoo! Yeah!

Jake: This is messed up, but sweet.

Lady Rainicorn: 진짜로. ("Truly it is.") (Finn and Princess Bubblegum revive more Candy Zombies)

Candy Person 1: Uncle Chewy!

Candy Person 2: Grandma!

Ice Cream Lady: All of our dead relatives!

Jake: Starchy!

Starchy: Mornin'.

Jake: (Walks over to Finn) Man, you broke a Royal Promise? You're nuts. All you had to do is say that it was a royal secret. I know what's up.

Princess Bubblegum: I hope you grasp the full consequences of breaking promises.

Finn: Heck yeah! If I break a Royal Promise, I get to fight zombies, throw slumber parties, awake Gumball Guardians and... and...

Princess Bubblegum: Alright, alright.

Finn: And reverse death itself!

Princess Bubblegum: Oh, you are adorable. But keep your promises, okay?

Finn: I will, Princess.

(Finn notices Starchy gnawing on his leg and picks him up)

Finn: Starchy, you're not a zombie.

Starchy: I can't help it. Flesh is delicious!

Finn: You're delicious!

Starchy: Don't squeeze me! I'll fart!

(Finn squeezes him, Starchy farts and the episodes ends)