Werner Herzog's documentary Ghost Elephants takes us deep into the remote Angolan Highlands, following conservationist Dr Steve Boyes and a team of Indigenous trackers on an extraordinary expedition.

After more than a decade of work, Dr Boyes is preparing to venture into one of the wildest regions in Africa — in search of an elephant so elusive that even local trackers rarely see it.

Guest: Dr Steve Boyes, conservationist and National Geographic Explorer

Ghost Elephants is streaming in Australia on Disney+