February 1945. In his bunker in Berlin, Hitler makes a desperate decision. He will deploy the V3 - a weapon so secret that its lethal nature is unclear even to the slave labourers constructing it deep beneath the Channel Island of Alderney. June 1990. Workmen on Alderney mysteriously start to fall sick. Journalist Robert Lebonneur believes he knows why. But the closer he gets to the truth, the more he realises he is up against the same deadly forces that caused so much upheaval nearly half a century ago.