Craig was a teenage lifeguard on a beach in Germany when two children died on his watch. It should never have happened. He was an expert swimmer. His grandfather, Gordon McInnes, was on board a ship torpedoed during the war. He survived. Years later, he met one of the crew of the U boat that attacked his ship. Gerd is a refugee of the Cold War. Recruited by the Stasi, he escaped to the west after his mission went terribly wrong. He never went back. Three lives; three turning points.