Steve Backshall looks at the Scottish Highlands, home to some of the most iconic wildlife in the British Isles. The two contrasting landscapes of open moor and Caledonian forest are both crucially important to their wild inhabitants and yet the history of the Highlands show that they shouldn't exist side by side. Steve guides us through the landscape and reveals the surprising part that humans have to play in allowing both habitats to thrive, thereby keeping this corner of the British Isles wild.