Rise of the Brave Tangled Dragon Riders.

Intro

HOW TO TRAIN YOUR DRAGON

Hicca (fem hiccup) is at the cove, knowing that she was chosen to kill a Monstrous Nightmare planned to run away when a bright light surrounded her, Toothless and her friend Astrid, who was sneaking around vanished. The same happened to the village and the dragon nest.

BRAVE

Elinor, the queen of Dunbrouch had just told her daughter Merida of her suitors, causing her daughter to storm into her room. Before she tries to go and talk to her, another bright light engulfs everyone.

Tangled

Rapunzel is shown being left alone in her tower, while her mother is going out to buy food. Suddenly a bright light engulfs her and the kingdom of Corona along with the forest.

Rise of the Guardians

 Jackie (fem Jack) is currently making it snow on the town of Burgess when a bright light swallows her, the other guardians, their helpers and Pitch Black from his lair.

Union Academy

Izuku Midoriya is shown in class talking to the girls from his class when suddenly a bright glow Engulfs him and everyone there.

Flare's theater

The people of Berk fall down except for Hicca who landed in one of the chairs hidden in the shadows.

"WHAT IN THOR'S NAME IS GOING ON HERE?! SHOW YOURSELF OR FACE THE WRATH OF STOICK THE VAST!", Stoick shouted trying to sound intimidating. However, it is hard to look intimidating if half your tribe is on top of you.

The same happened to the other worlds with the main characters sitting down in the hidden chairs.

"WHAT IN THE NAME OF THE MOON IS HAPPENING?!", North shouted.

Suddenly a Man with fire red hair and wearing a crisp red suit comes sliding down and appears in front of a screen.

" Hey there! I'm Flare the God of Fire, Violence and animals. You are going to watch an adventure of a lifetime!", The god now known as Flare said.

He then pulled a random rope that appeared and the wall behind everyone collapsed revealing dragons and the symbols of each world on different walls.

As everyone got seated (Flare had to stop the Vikings from attacking the dragons). Izuku noticed that he was wedged in the middle of 6 girls right next to him.

"Well, this is akward." Izuku thought.

Flare then appeared in front of the main screen again. 

"This movie is about two princesses, two vikings, a dragon, a thief, a spirit and a rider. All questions shall be answered in the end" Flare said.

Once all is said, the screen came to life.