Season 1

Part one of two. Archaeologist Francis Pryor travels the length and breadth of Britain to lift the lid on what the nation was like before the Romans invaded. He explores their ancient predecessors' culture and suggests they were more sophisticated than previously believed.

Francis Pryor concludes his investigation into Celtic Britain, asking why the Romans perceived such a threat from Druids when more critical events were occurring in East Anglia as Boudicca led a bloody revolt. Pryor travels from Stonehenge to Orkney in search of answers, reinterpreting the meaning of stone circles as he explores the invaders' fascination with the ancient druid religion.