Drug trafficking in Peru produces $22 billion annually -- nearly 17% of the country's GDP. A staggering 14,800 tons of chemical waste from the cocaine production process is dumped in the Amazon river basin every year. #DrugsInc | National Geographic TV

A fifth of the world’s cocaine is produced in one valley. Controlled in part by Shining Path Maoist guerillas, Peru’s poorest region, the Valle de los Ríos Apurímac, Ene y Mantaro, is ungovernable and the drug trade flourishes. We gain exclusive access as coca growers, the cocaine cooks in their secret jungle labs, dealers and their ‘mules’ explain the business and its effects. | The Guardian