When the witch Kika casts a spell on Ruprecht, Santa's helper, Ruprecht escapes and begins to wreak havoc on the city. So Kika will have to travel back in time to the Middle Ages to save Christmas and all the children in the world. Based on the Knister novels, translated into 50 languages, Kika will live another exciting adventure to overcome herself, trusting her abilities, along with her friends and her clumsy little dragon Hector.