Leobardo, the protagonist of this store, lives in Cerro Viejo, a town where the laughter of a child has never been heard. One day, boredom and the stream of a river take him to Tierra Dulce, a place full of children and where he learns to play marbles, to climb trees, to score goals, to sing, to dance… to laugh. But the dream didn’t last long. Who has dared break it? What will Leobardo and his friends do to find it out and recover the lost paradise?