Young princess Mia uses her magical powers to escape from the reality of boredom around the palace walls. Together with her imaginary friend Nandan, a young Nandan, they sneak into the tiny kingdom of Moon Shadow, where magic is the way of life.
Eight children between four and eleven years old move into a new housing development. They go to the same school and play together. There's the boy Petja and his friends Vincent, Laurin and Maus, and the girl Tara and her friends Tieneke, Fritzi and Jul. They often have different opinions and it doesn't always turn out to be fun. But Möwenweg is ultimately always the most beautiful place in the world.