Reggie Yates investigates the reality behind the global super rich's insatiable appetite for luxury goods. Top of the list is animals, but how much is known about where exotic skins and furs come from? And what is the real cost? To find out, Reggie visits Siberia in search of the world's most expensive fur. In Australia, he discovers the reality behind croc farming, and in Indonesia he searches for the pythons that end up as bags and phone cases. As the fashion for animal products trickles down to the high street, is it sustainable?