After Rapunzel is kidnapped by Flynn for not marrying him the thief goes after her children, forcing Jack to place 7 year old Elsa and 5 year old Anna under the care of the King and Queen of Arendelle and their daughter Emma the Ice Princess, allies of the Man in the Moon. Years later right after the movie Frozen, Elsa is the Snow Queen of Arendelle and Emma and Anna are the Ice Princesses. But Pitch returns with help from Flynn, Man in the Moon picks Elsa, Emma and Anna as new Guardians, but can Jack and the 3 girls work together?

Modern AU about Jack Rapunzel Merida and Hiccup going on a road trip

This time, Merida and Rapunzel are stepsisters. Nevertheless, they love each other. Both of them haven't experienced the outside world. 'Til one time the winter spirit, Jack saw their tower and came in to peek. Both Merida and Rapunzel were startled, but after a moment they had this crazy idea of finally getting themselves out. And Jack was happy to help. Soon they'll smell the adventure ahead of them. As they enjoined being free and having fun. They met another boy. This time, the boy they met was Hiccup and his story was not that different from the others either. From that day on, a bond was struck! And also, evil was against them. Pitch comes back with all of his nightmares. Jack's fellow guardians were needing a bit of help. So, Man in Moon decided to make the other three to be one of them but in a lower position. They will become PROTECTORS. Protectors have the same objectives of the Guardians only that Guardians are in a higher position. Protectors guard and protect the children from harm but does not have special titles and abilities like the other guardians. They'll be trained by the guardians including Jack in North's workshop and they will be able to know their capabilities. Man in Moon proclaimed that one of the three new Protectors is their Predictor. The Predictor has the ability to foresee the future and is an advantage to all of the team. He/She would see a vision of Pitch's plans and inform them about everything. The guardians and protectors will now rise against Pitch and his army of Nightmares and they'll also gain help from their loyal and beloved believers; Jamie and his friends. All of them would work together and stand on each other side by side to conquer evil...

That day was just like any other boring day in their lives, but their lives changed within seconds. Hiccup, Merida, and Rapunzel want nothing to do with the Guardians, or each other, for that matter. But, they are forced to help. Will they learn to embrace their fate and help save the world?

The Big Four meet because Pitch is back, stronger and is now planning on destroying Jack Frost and the Guardians... The Big Four: Merida - Summer Rapunzel - Spring Jack - Winter Hiccup - Fall At first the four teenagers didn't go well together but after being together and knowing more about each other they became the best of friends, and maybe grow more than friends... And in a mater of weeks or months Pitch finds new recruits, which are the fears of the other 3 new teenage guardians.

Jack, Hiccup, Rapunzel, and Merida must all come together to help defeat a reoccurring nightmare, but when one of them turns to evil what will they do?