Eight thousand years ago, a lush paradise, home to mammoth, deer, and societies of hunter-gatherers connected Britain and mainland Europe - Doggerland. But this stone age Eden no longer exists. It was wiped out by a single devastating event, leaving it hidden beneath the waves of the North Sea for nearly 8,000 years. Slowly archaeology is revealing what life would have been like in this mesolithic paradise. But also how these people struggled to survive as their world was lost beneath the waves.