Synopsis
Armed with stone axes and grim determination, a few thousand people turned our islands from forest to farm. Alan Titchmarsh discovers how our ancestors - from Stone Age man to the Romans and Normans - not only changed the countryside but also brought us the scourge of gardeners everywhere.

8: Our Future | British Isles: A Natural History
Alan Titchmarsh travels Britain to discover why our islands are so diverse and extreme. He concludes his journey and asks what the future might hold for our landscape.

7: Modern Times | British Isles: A Natural History
Close encounters with rare red squirrels and bats hiding in the silos at Greenham Common - Alan Titchmarsh reveals a hundred years of change to our countryside, including some unexpected alterations to Northumberland using high explosives.