During the Hundred Years' War, peasant girl Joan of Arc (Ingrid Bergman) hears voices instructing her to save France from the English. Convinced that these unsummoned murmurings are divine messages from God, Joan consults the uncrowned Charles VII (Jose Ferrer) who, startled by the accuracy of her clairvoyance, assembles an army and installs her as its leader and spiritual guide. Her victorious forces reclaim much of their homeland from the English, but she herself falls into enemy hands.