Naachtun is the last city of the Maya golden age. We know little about it and archaeologists have started excavation just a few years ago. Isolated in the middle of the tropical forest of Guatemala, the researchers are trying to understand how it can have survived for almost 200 years after the collapse of the Mayan civilization in surrounding cities, and in doing so, to shed new light on the history of this people. Using ambitious resources, including 4K HD cameras, drones, and cutting-edge graphics, the result is an exciting adventure combined with an in-depth scientific study. This documentary promises the account of an epic saga.