Five new first years join Hogwarts. They begin their year like any other-Well, if you discount smuggling in a baby dragon, struggling to control your strange ice powers, and hiding secrets from your best friend. Jack, Elsa, Rapunzel, Merida and Hiccup are in for a fun year-and did we mention the dragon threatening to attack the school?

Pitch was defeated by the guardians some time back and now he wants revenge and power. Elsa who fears her powers and is scared of everything she's done becomes his tool to regain power. In the guardians' quest to protect Elsa and the children of the world, she meets Jack Frost, who seems to have the same icy powers as her, and finds out that they're very alike, yet different...