Wildlife poaching is big business and rhino horn worth more than gold. The only thing standing between South Africa's animals and possible extinction is a new breed of anti-poaching rangers. They come from a wide range of backgrounds, but they have one thing in common - they are prepared to lay their lives on the line for Africa's wildlife. In episode five, some of the trainee rangers come face-to-face with a poacher as they learn to trust their instincts.