Some mysteries are unveiling in Hogwarts seven years after Elsa Arendelle started to learn magic. She gets help from her friends Merida of DunBroch and Rapunzel Corona when strange things start to occur in her school grounds. Elsa's sister Anna won't want to miss a thing either. Unfortunately girls need some aid from three guys Flynn Rider, Hiccup Haddock and Kristoff. However the most precious and valuable aid comes from Elsa's worst enemy at school who carries the name of Jack Frost the troublemaker. Soon Elsa finds out that there is something rather strange about him also.