The story about the magical world of children's imagination, growing up and improving the world lightly reflects the most important treasures of Janusz Korczak's philosophy: every child should be loved, respected for their boundaries and allowed to dream. I guess every child wants to have magical powers. What if this dream comes true? Kajtek, a teenage boy with an exceptionally rebellious temperament, grows up with his father and grandmother. The class prankster one day discovers supernatural abilities. An unusual talent combined with the boy's unruly character mean big problems not only for the school, but also for the entire city. Magical powers take control over Kajtek's life, and from now on he deals with both the disliked teachers and the entire school community, gaining sympathy and fame among his peers. The situation begins to get complicated when the forces of good and evil begin to compete for the boy with magical abilities. Which way will the young wizard go?