At the height of the Cold War, officials at the Ministry of Defence conducted a highly secret investigation into unusual events that occurred along a strip of rugged Pembrokeshire coastline. The events made national headlines: objects hovering in the sky, ghostly figures peering into windows and poltergeists plaguing a terrified family. Thirty years later, the official files were finally released for public scrutiny and prompted a new witness to come forward. His testimony rocked the very foundations of the British Government. This is his story.