Nine-year-old Nicolás Roblealto is travelling on a boat with his parents. He's really bored. And instead of enjoying themselves, his parents spend the whole time arguing. One day Nicolás decides to carry out his threat: he takes a lifeboat and goes to a desert island. There he begins an epistolary adventure during which the island fills with girls and boys; the adults can't do anything and things take a very bad turn. Or a very good one, depending on your viewpoint.