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.

The show’s own verdict is on its page.