Medway Queen: Antiques Roadshow Detectives uncover Alfred Cook's Dunkirk exploits

A County Down man has traced the remarkable story of his grandfather's World War Two exploits with the help of Antiques Roadshow experts.

When Alan Cook brought his grandfather's bravery medal to the Antiques Roadshow last year at Hillsborough Castle, the war stories were the stuff of family legend but he had little idea of what his grandfather was like as a person.

BBC News NI's Mervyn Jess reports.