Alicia, a spoiled city girl of 11 years old, is forced to spend the summer with an unknown aunt who lives in a remote and mysterious island. The first contact with the island is hopeless for Alicia. Soon she meets Fermín, a rare character who amuses her because he always has good and funny ideas. She also meets Tomas and Mima, the only kids in the town. Gradually, she feels more integrated with her new friends. A strange series of events take place in the town, and turn Alicia in the main character of the most unusual, mysterious and exciting of her life.