The team visit a site near the Roman road of Ermine Street, where a clutch of Roman objects has been discovered. But field-walking has also produced Anglo-Saxon artefacts, and it becomes apparent that the site had more historical activity than first anticipated. Unlike today, the terrain would have been largely boggy and marshy. The archaeology increasingly points to a Roman industrial site with strong evidence of pottery manufacture and export. But after the Romans left, it may have taken on an important monastic role - much to Mick's delight. The team attempt to reproduce a Roman kiln. Finally, towards the end of day three, John's geophysics uncovers a possible neolithic enclosure. They even find time for cheese tasting, though Stilton is not actually the place where Stilton cheese is made. They are joined by Philippa Walton from the PAS, and Ben Robinson of Peterborough Museum.

• Tim Taylor

• Tony Robinson
• Bill Oddie
• Phil Harding