Nutbourne College, an old established, all-boys, boarding school is told that another school is to be billeted with due to wartime restrictions. The shock is that it's an all-girls school that has been sent. The two head teachers are soon battling for the upper hand with each other and the Ministry. But a crisis (or two) forces them to work together.

Sergeant Jack Hardacre returns from the war to his contemptible fiancée Janey Jenkins intending to reconcile with her against all odds. But he falls in love with a charming new lodger Milly Southern instead.