Join an expedition as they venture high into the Himalayas in search of big cats. Closed to outsiders for years, Bhutan is a forgotten world and no one knows how many tigers prowl its jungles and mountains. Moving through the jungle on elephant back, the team deploy the latest camera-trapping technology and fingerprinting software to identify the big cats, and a specially trained sniffer dog to track down tiger dung. Heading to the peaks, the team climb gorges, shoot rapids and live with yak herders. From leech-ridden lowlands to breath-taking icy summits, the team explore Bhutan.