Steve Backshall heads to Bhutan in search of wild tigers. As part of a basecamp full of international scientists, film-makers and experts, his job is to find out if tigers are thriving in Bhutan's jungles. With the help of a sniffer dog, trained to track down tiger scat - or poo - he goes off in search of clues. On his journey he discovers what else is lurking beneath the canopy, from golden langur monkeys to an Indian rock python, and the extremely rare clouded leopard.