Dame Judi experiences the rainforest for the first time in a thrilling 125 mile helicopter ride to the heart of the island with expert Glen Reynolds. The jungle there is 130 million years old - so ancient it was around when dinosaurs walked the earth. Once she arrives, Dame Judi meets orangutans in the wild, encounters giant grasshoppers and moths and falls in love with a dung beetle she names Bob.

Judi journeys down Borneo's Kinabatangan river, over 560km long, and along the island's coastline to explore the unique wildlife that lives in this threatened environment. With intrepid scientist, Kerisha Kntayya, Judi joins a crocodile hunt with a difference. Kerisha plucks young crocodiles out of the water. Judi then joins Kerisha's team as they wrestle an adult crocodile as part of the study Kerisha hopes will help save these prehistoric monsters.