The actor makes his way along Hadrian's Wall, built to guard the northern frontier of the Roman Empire in AD122, and covering almost 80 miles in length from the Irish Sea to the North Sea.
Robson Green
Score: 6.7
Score: 7.7
Score: 2.0
Score: 7.4
Score: 7.7
Score: 6.0
Score: 7.2
Score: 8.6
