There were many Chinese seamen in the merchant navy fleet during the Second World War and their dead were among those killed when U-boats torpedoed the Atlantic convoys. But afterthe war hundreds of Shanghai sailors were repatriated, many forced to leave behind their British-born wives and children. Ivan Howlett tells the story of those Chinese seafarers from Liverpool and hears from the children they were forced to leave behind who have spent their lives trying to find out what really happened to their fathers. Producer Angela Hind