Alan Dein traces the surviving participants of a unique experiment in the 1930s thattook hundreds of unemployed families out of north-east England and Wales, and relocated them as market gardeners in the Midlands and Home Counties. These pioneers, mainly from mining backgrounds, were given a small plot of land, a pig and some chickens. The organisation they created went on to create some of Britain's finest tomatoes and lettuces. Producer Matthew Dodd