A story of four very different girls, thrown together by war . . .
It is 1941 and all over Britain WAAFs are being trained to fly barrage balloons. Norfolk-born Kay Duffield is one of them, anxious to do her bit whilst her new husband goes overseas.
Soon she meets shy Emily from Wales; down-to-earth Biddy, fresh from the Liverpool bombing raids, and Jo, whose rebellious nature looks set to land them all in trouble.
Together, the four girls tackle the hardships and dangers of flying balloons. Through good times and bad, they struggle to do one of the hardest jobs ever undertaken by WAAFs.