Niall tracks elephants in Nepal's Bardia National Park to investigate reports of animals that are larger than other Asian elephants.

Niall pursues legends of man-eating tigers in Nepal; he works with locals to find a big cat responsible for killing their livestock and discovers the truth behind the legends of giant man-eaters.

Niall is on Australia's Mary River where he plans to find the world's largest reptile-saltwater crocodiles- to take measurements and release back into the wild.