The story of how Lonnie Donegan's recording of The Rock Island changed the course of popular music forever. Folk singer and musician Huw Williams talks to The Quarrymen and Peter Donegan, tracing the origins of The Rock Island Line from John Lennon's prized 78 via the prisons of the Southern American states to the railroad itself. The programme includes a brand new recording of The Rock Island Line featuring The Quarrymen and Pete Donegan.