A group of men redefine what it means to be a modern-day cowboy in the Australian Outback.

A tribe of tree surgeons climb to stratospheric heights to protect the world’s most ancient trees.

In the heart of the African bush, a small band of rangers protects local wildlife from an ominous threat.

In the waters off Alaska’s remote coastline, a rare breed of fishermen walk the ocean floor for their bounty.

Off the southern tip of Africa, a group of scientists strive to protect nature’s perfect predator.

On the frontier of Tornado Alley, a storm chasing team protects the Midwest, USA, from Mother Nature's wrath.

For the Coast Guard’s elite rescue swimmers, saving lives is an honour, a duty and a way of life.