A passionate conservation biologist brings together a river bushman fearful of losing his past and a young scientist uncertain of her future on an epic, four-month expedition across three countries, through unexplored and dangerous landscapes, in order to save the Okavango Delta, one of our planet's last pristine wildernesses.

In Angola's mist-shrouded highlands, three KhoiSan master trackers embark on a spiritual quest to rediscover the legendary "ghost elephants" of Lisima, creatures presumed lost but remembered in ancestral trance, ritual, and memory.