Yesterday : Secrets of War
The covert methods used by the Vietcong to foil the Americans, including hidden supply trails and underground cities. Narrated by Charlton Heston.
Tony Robinson and the team excavate the remains of a Roman market town hidden beneath the small Monmouthshire village of Caerwent. The archaeologists are puzzled by the discovery of a maze of walls, and other finds - including a child's toy, evidence of street food and a rare knife handle carved into the shape of two fighting gladiators - prove this was a bustling community.