During the 1930s, the British built the first ever early warning defense system made up of a chain ‎of radar installations that ran along Britain's east coast. These installations were called Chain Home ‎stations and one of them was called Swingate. It was located very close to Dover, across the twenty-‎mile Strait from the French city of Calais. Swingate's was one of the most valuable early warning ‎radar system and was a key factor in the British victory during the Battle of Britain. ‎
This novel is a fictionalized account of the lives of two people during the World War II ‎Battle of Britain and the bombing campaign by the German Luftwaffe during what came to be ‎known as the London Blitz. They are an American named Jeffrey Bartlett and a British woman ‎named Catherine Hartley. They meet and fall in love in London amidst the backdrop of the year ‎during which Britain stood alone and saved civilization. When it looked as if the sensible thing to ‎do would be to make peace with Adolf Hitler and Nazi Germany, the British people steeled ‎themselves under the leadership of the British Bulldog, Winston Churchill, and persevered against ‎enormous odds.‎