Before the ascent of the Inca empire, ancient and enigmatic civilization thrived along Peru's coastal deserts. The ruins of the city of Chan Chan and the religious center of Pakatnamu bear silent witness to one of these civilizations, the great Chimu culture, known for its elaborate textiles and pottery. But perhaps the most stunning achievement of the Chimu was their ability to harvest crops on expansive tracts of land that today are little more than barren sand. We know that they accomplished this through a highly sophisticated network of irrigation canals. But how could a "primitive" people employ such advanced technology yet, at the same time, leave no evidence of a written language? MYSTERIES OF PERU is a two-part documentary series exploring the stunning achievements of pre-Inca civilization... and it's mysterious and sudden disappearance.