Four young British soldiers find themselves trapped behind enemy lines at the height of the fighting on the Western Front in August 1914. Unable to get back to their units, they shelter in the tiny French village of Villeret, where they are fed, clothed and protected by the villagers, including the local matriarch Madame Dessenne, the baker and his wife.

The self-styled leader of the band of fugitives, Private Robert Digby, falls in love with the 20-year-old-daughter of one of his protectors, and in November 1915 she gives birth to a baby girl. The child is just six months old when someone betrays the men to the Germans. They are captured, tried as spies and summarily condemned to death.