Leona: Hey Jack! You've got a dare!

Jack: *sulks* What is it?

Leona: Sara-Q wants you to prank a bunch of princesses.

Jack: Sweet! Who are they?

Leona: All of the princesses under Disney's protection.

Jack: *face falls* Oh.

Leona: Are you saying you can't prank a few princesses because they're under the protection of the number one elite spy agency?

Jack: *looks insulted* Of course not!

Leona: Good. You better get to work.

Jack: Bye! *runs off to prank some princesses*

-In Arendelle-

Jack: How best to prank the princesses?

Kristoff: *sneaks up behind Jack* How about not at all?

Jack: Aahh! Why did you sneak up on me?

Kristoff: You seem out of place. I'm Kristoff, Princess Anna's fiancé, and I've got my eye on you. *walks away*

Jack: I'm Elsa and Anna's brother.

Kristoff: *turns to look at Jack* Queen Elsa has a brother?

Jack: Yep! The name's Jaak.

Kristoff: How do I know you're even related to the Queen?

Jack: I can do this. *makes a snowflake* Also, Elsa and I look the same.

Kristoff: *sizes Jack up* But you don't look or act like a prince.

Jack: Well, you don't look like much of a prince either.

Kristoff: That's because I'm not a prince.

Jack: Then why are you marrying my sister?

Kristoff: Because its true love.

-At the palace-

Jack: Hello, Elsa, Anna. I am your brother Jaak. *bows*

Elsa: *looks skeptical* Are you sure?

Anna: We have a brother?!

Jack: You do. May I stay here for a few days?

Anna: Elsa, please let him stay for the wedding!

Elsa: Very well. Anna will show you where you can sleep.

Jack: Thanks sis! *follows Anna to a well furnished room*

Anna: So, this is your room. Do you like chocolate?

Jack: Who doesn't?

Random person: Princes Anna, who are you talking to?

Anna: My brother.

Random person: What brother?

Anna: My brother Jaak. *points at Jack*

Random person: There's no one there.

Anna: But he's right here! *pushes Jack forward*

Random person: Okay... *hurriedly walks away*

Anna: That was odd.

Jack: See you later. *goes into the room and shuts the door* That was close.

Olaf: Hi! I'm Olaf, and I like warm hugs.

Jack: Ahhh! What are you? *points staff threateningly at Olaf*

Olaf: I'm a snowman. Elsa made me.

Jack: How? And why are you in my room?

Olaf: I like warm hugs. *leaves room*

Jack: Well, that was weird.

(I'm not going to explain every detail because then the prank would take three days to read, but Jack made Anna, Elsa, and Kristoff think that they were going crazy. From now on, I will just say the prank.

Rapunzel- Mother Gothel is still alive.
Cinderella- Made a shoe out of frost and replaced her glass slipper.
Ariel- Froze the ocean
Belle- The Beast becomes a beast again.
Tiana- Froze everyone in place
Aurora- "Haunted" the castle
Pocahontas- Made the winter come early
Mulan- Made her go crazy

If I forgot any princesses, please notify me.)