9. A Bronze-Age Barrow and Walkway - Flag Fenn, Cambridgeshire

The team have their work cut out in the Cambridgeshire fenland, looking for remnants of an ancient culture in the flat landscape. The long wooden track would function as a barrier, defence and ritual passage where votive offerings were placed in the water. At the end of it they hope to find a barrow - a circular Bronze Age burial mound. Dave Chapman constructs a bronze axe in a primitive furnace; while wood expert Maisie Taylor looks for a suitable handle in nearby woodland.