The chequered history of a tiger conservation park in Rajasthan, northern India, from its success in the 1980s through its battles with corruption and poaching in the early 1990s to its present status as home to the highest number of tigers and cubs for 15 years

Valmik Thapar returns to Ranthambhore National Park in Rajasthan to witness the progress of Machli, a tigress he has followed for four years. It's been a while since he last saw her and she now has two cubs, but with their father gone, presumed dead, she faces a new challenge - protecting her offspring from the males that are trying to establish themselves in the area