The intrepid archaeological treasure hunters, led by Tony Robinson, head for Malton in North Yorkshire where a swathe of nettle-infested jungle conceals 2,000 years of English history including a Roman fort.

The land is about to be turned into a park and the Time Team have been asked to uncover the area's other secrets, specifically a medieval castle and a Jacobean or possibly Tudor manor house. But with English Heritage breathing down their necks and a limit of five trenches they can dig, it could turn out to be their toughest assignment ever.