Eight-year old Julius lives at an orphanage. Julius is a bit of an outsider, and secretly still believes in Santa Claus. When he is confronted with the fact that Santa Claus may just be the headmaster of the orphanage dressing up, Julius loses not only his belief in Santa - also his belief in himself. But then something strange happens, and suddenly Julius finds himself in a magic world.

At Rosenholm Gymnasium, Selma is to start her second year. On the last night of summer, she meets Johan, a charming but slightly older guy, who turns out to be her new music teacher.

In this 3rd installment Alex’s interest for Ninja missions is starting to vanish. He’ll rather spend his time with his friends and Checkered Ninja feels he is overlooked and is eager to engage in a new mission. The result of this is that Alex, by accident, ends up having a conflict with Marco, the bad boy boyfriend of Jessica, entangling him in a conflict he hasn’t asked for and he is pressured by Checkered Ninja to defend himself.