In 1456, Charles VII (Richard Widmark), experiences dreams in which he is visited by Joan of Arc (Jean Seberg), the former commander of his army, burned at the stake as a heretic twenty-five years earlier. In the dream he tells Joan that her case was retried and her sentence annulled. He recalls how she entered his life as a simple, seventeen-year-old peasant girl; how she heard the voices of Saints Catherine and Margaret telling her that she would lead the French army against the English at the siege of Orléans and be responsible for having the Dauphin crowned king at Reims cathedral. When Joan arrives at the Dauphin's palace at Chinon she discovers that he is a childish weakling with no interest in fighting. After being tested by the members of the court, who conclude that she is mad, Joan imbues the Dauphin with her belief and fervor and he gives her command of the army.