Pablo Escobar was the mastermind of drug trafficking and narcoterrorism in Colombia during the 1980s. He transformed the city of Medellín into the cocaine capital of the world and pioneered a model that almost every major criminal organization would later adopt.Countries around the globe are still grappling with the aftermath of Escobar's reign 20 years after his death, from the hired killers he trained as his army of underage hitmen to the remote cocaine labs and clandestine air strips in the jungles of Peru helping feed the world's hunger for coke.In the last part of our three-part documentary, we embed with the Peruvian National Police as they trek into the Upper-Huallaga, once the main coca supplier region to the Medellín Cartel, where locals still struggle to find new crops with which to replace the traditional coca economy.