A 10 year old boy called Simão goes on a journey to discover why his favorite animal, the spider monkey, is going extinct. Along his journey he will visit different and distant parts of his world, meeting peculiar characters: a Sun that is overheating, a rising Ocean, a very dehydrated Drought, a lonely farmer and C02. They will help him to find the answers to what is happening to his world and what he can do to save the animals and the planet.