S01E01 Mountains
Only the hardiest of beasts survive in Britain's mountains and uplands, including the golden eagle and its prey the mountain hare, plus 400,000 red deer and flamboyant black grouse.
In the varied water worlds all kinds of wildlife thrive, from slithering grass snakes to delicate reed warblers.
Wildlife documentary series narrated by Hugh Bonneville revealing the hidden lives of the animals that live in various habitats around Britain.