The main Grandfather Frost was injured and will not be able to distribute gifts to all the children and arrange a New Year's miracle. Then it was decided to send his son, the still inexperienced Santa Claus, to save the holiday. However, having set out on a mission, young Frost loses his magic staff, and he himself finds himself somewhere on the outskirts of Moscow. The magical power hidden in the staff is taken over by an official who uses it for his own purposes. And Frost the Son is trying to navigate the New Year’s metropolis and cope with the difficult task assigned to him.