Petroc Trelawny explores the fascinating history of the Roman Fort of Vindolanda, which today is one of Europe's most important Roman archaeological sites. Petroc is joined by local folk musician Mike Tickell to sing some border ballads and talk about the rich folk traditions of the area. Horn player Letty Stott demonstrates ancient horns that have been recreated based on a rare ancient Roman cornu mouthpiece unearthed at Vindolanda