After a severe blow to the head, Santa Claus wakes up believing he is SuperKlaus, the superhero from a popular movie series. This unleashes chaos in the North Pole and Fafnir, a greedy toymaker, takes advantage of the situation to take control of Santa's workshop. Only Billie, a cunning and brave little girl, her robot C.A.R.L. and the elf Leo can thwart his evil plans and save Christmas before it is too late.