Asia has the longest coastline of any continent and the earth's richest coral reefs. This episode explores Asia's waters, as spectacular as they are diverse, and never-seen-before animal behaviour.

A look at the remote reaches of Asia's frozen north, where creatures must overcome unique challenges, finding exceptional ways to thrive in a hostile world that pushes life to its very limits.

A look at how, in the planet's most densely populated continent, animals live at extremely close quarters with people - from tigers making a home in town to elephants stopping traffic for food.

Many passionate people are dedicated to saving the wild animals of Asia. These individuals and their ingenious solutions give hope and optimism for the future of the continent.