To try to save his family from bankruptcy, young Cris (Christopher Columbus) and his friends Leo da Vinci and Mona Lisa will follow the trail of an old map where the legendary “Island of Brazil” appears. Legend has it that great treasures are hidden in that unexplored place. But things are not as simple as they seem and the inhabitants of the Sea Kingdom and their terrible beast Nautilus will stand in their way. It's time to bring out the ingenuity of little Columbus, the inventions of Leo and the bravery of Mona Lisa. The adventure for the treasure has become a completely different one: trying to get home safely.