Jack has the extraordinary power to transform himself into the animal of his choice. At least he did until today. Since he became a real little boy, isn't he at risk of losing his "cikavac" gifts? These doubts come at a bad time, because it's time for a monkey rebellion. Gatherings of primates are worrying the entire planet. On the way to school, a tamarin takes Jack, his friend Malek and Floche, the firefly, on a world tour to meet endangered species of monkeys.