The annual migration of wildebeest through the plains of the Serengeti reaches its unforgiving apex at the banks of the crocodile-infested Mara River. Undeterred, the herd leaps in despite the deadly predators within. Join wildlife expert Jean du Plessis as he charts this epic and often-deadly journey.

The annual Serengeti wildebeest migration is a journey so fraught with peril, it's a wonder they set off at all. For wildlife expert Jean du Plessis, it's a unique chance to see how a new generation of calves, born just months ago, will fare among the predatorial lions and crocodiles that await them.

Formed during a cataclysmic volcanic eruption two million years ago, Tanzania's Ngorongoro Crater is home to the highest concentration of mammals in the world. Explore this vibrant ecosystem and the extraordinary geological features that have made it a haven for biodiversity.

Tanzania's Mount Kilimanjaro is the highest freestanding mountain and volcano in the world. Join wildlife expert Jean du Plessis as he makes the perilous summit climb through its five vastly different climates to understand how quickly its famed glaciers are melting.

The Serengeti is one of the most biologically diverse areas on earth--but it's also the scene of some of the most important fossil discoveries ever made. Join us as we meet the modern inhabitants of this ancient land, and track how their evolution helped shape our understanding of human origins.