When Juliet Porter's mother dies, she leaves Juliet some old letters and a photograph which shatter all her previously-held beliefs. They show that her real father was an American bomber pilot in the second world war, some forty years before, and that he had met her mother while serving in England. Armed only with this photo, Juliet sets out to trace her real father, and eventually finds the airfield where he served.

In 1943, Juliet's mother Daisy is in the WAAF and stationed at the airfield which is taken over by the American airmen at a moment's notice. She falls in love with a bomber pilot who is then posted missing, presumed dead; pregnant and grieving, she marries a long-term admirer.