Tony Robinson and his intrepid team of archaeologists head off the beaten track in Lincolnshire to discover why a metal detector enthusiast has discovered hundreds of Roman and Iron Age artefacts in a muddy field. Add to that the mysterious Roman columns strewn around the surrounding village and the team have a challenging three days to come up with some answers. As the dig progresses, the evidence mounts to suggest that the local Roman population were conscious of the need to recycle.