Sam Wilson, Time Team's conflict archaeologist, visits the site of an archaeological project exploring battlefields of Operation Cobra in Normandy led by Cameron Ross, the director of the Battlefield Archaeology Group. He meets the team of international archaeologists and volunteers for their 3rd season of exploring the archaeology of Operation Cobra. Operation Cobra was a major allied operation that finally broke through the German defence in Normandy in 1944. The project is the first time a World War Two battlefield in Normandy has been studied in its entirety. It involved intensive geophysics, to locate German positions in the first phase of the breakthrough as well as strategic metal detecting.