Middle-class housewife Kay Miniver deals with petty problems. She and her husband Clem watch her Oxford-educated son Vin court Carol Beldon, the charming granddaughter of the local nobility as represented by Lady Beldon. Then the war comes and Vin joins the RAF.

An excessively sentimental piece of propaganda, Mrs. Miniver nonetheless succeeds, due largely to Greer Garson's powerful performance.