Britain is crisscrossed by an amazing network of ancient trackways. These remarkable routes are our oldest roads and have been travelled for more than 5000 years. Walked by pilgrims and traders, hunters and invaders, Celts and Romans, Saxons and Vikings, each track is bound up in myth, mystery and legend. Tony Robinson sets out to explore the truth behind the megaliths, burial sites, ley lines and hidden caves along these ancient pathways and connect the clues they have left hidden in the British landscape.