The Hunt

The final episode of the series visits the frontline of the conflict with the world's top predators, meeting the scientists fighting to save them.Crossing five continents and combining landmark natural historyfootage with real-life human drama, it checks the pulse of the earth's iconic animals, including lions, tigers, polar bears and blue whales.

The coast is the dynamic border between land and sea; powered by the tides and thrashed by waves, this is a world of continuous change. Opportunities never last long here, so hunters are always in a raceagainst time.

The open arenas of grassland and desert make up half of all land on our planet. In these exposed habitats, predators like cheetahs, bald eagles and lions can usually see their prey.

Hunger at Sea follows blue whales, sharks, sea lions, frigatebirds, dolphins and albatrosses to reveal the strategies they use to hunt for prey in the big blue. The open ocean is an immense wilderness thatcovers more than half the surface of our planet, yet for the most part it's a watery desert, largely devoid of life.

Hide and Seek follows tigers, harpy eagles, chimpanzees, army ants and other predators as they rise to the challenge of hunting within the forest - a dense, confusing, three-dimensional world, one in which evenfinding prey is a maddening task. The prize for succeeding at nature's great game of hide-and-seek is one worth winning.

In the Grip of the Seasons looks at the challenges of hunting in the Arctic, the most seasonal place on Earth. To a predator, seasonal change is a problem.

The contests between predators and prey are the most dramatic events in nature. The Hardest Challenge reveals the extraordinary range of techniques predators use to catch their prey - from a leopard using all its powers of stealth to stalk impala in broad daylight to wild dogs, whose tactic is to wear down their prey over long distances; from Nile crocodiles, the planet's most patient predators, to killer whales who use teamwork and intelligence to take on humpback whales.