About this programme

1/4. Neil Oliver explores the origins of Britain and its people, a story forged over thousands of years. In South Wales, he joins a team of archaeologists to examine 8,000-year-old footprints revealed beneath tidal mud banks, and he abseils into a cave dating back 33,000 years. The historian also reveals how, as the last ice age receded some 11,000 years ago, Britain became an island, a fate that was sealed following a cataclysmic tsunami around 6,000 BC.