During the Vietnam War an elite team of pilots braved terrifying odds by flying unarmed light aircraft over enemy troops to mark targets for America's supersonic strike planes. Now, British airline pilot Shona Bowman is determined to return one of their planes to the sky, but the battered Cessna Bird Dog she bought for £10,000 turns out not to be the bargain it first appeared. Featuring recently rediscovered tapes of combat missions over Vietnam recorded by the pilots themselves.