Neil Oliver continues the story of how today's Britain and its people were forged over thousands of years of ancient history. It's 4,000 BC and the first farmers arrive from Europe, with seismic consequences for the local hunter-gatherers.

Neil encounters a celebrated warrior from 300 BC, owner of the finest Iron Age sword ever discovered. He tries his hand at divination in an effort to discover the power of Celtic priests and searches into his own DNA for clues to Celtic identity.