27 August: The Rhino Horn Barons

In South Africa, murders are being committed over rhinoceros horns. The country is home to 80% of the planet's rhinos, a critically endangered species. This war is fuelled by demand in Asia, where the horn, believed to possess miraculous medicinal properties, fetches the same price as cocaine. We follow the trail of one of the godfathers of rhinoceros poaching, Joseph Nyalunga, better known as "Big Joe". For over ten years, the South African police and courts have been on the heels of this dangerous man. Kruger Park, where "Big Joe" operates, has lost 8,000 rhinoceroses in the last ten years.