The remains of a 9th century Maya royal family provide clues to one of the greatest mysteries of the ancient world: what caused the collapse of the Maya Empire?   Why did the mighty South American Mayan civilisation collapse? This documentary sets out to find answers, after sixteen skeletons are discovered in a mass grave. They are the remains of a 9th century Mayan royal family – and their murder reveals a tale of sex, greed, rivalry – and ultimately destruction. Combining one of the most important finds ever in Mayan archaeology with gripping new forensic evidence, this DVD provides a new insight into the fall of an empire.