Rebel heiress

After her aunt's death in Boston, Henrietta Marchmont accidentally discovers the secret that the disagreeable old woman had kept for nearly twenty years. She learns of her English father, Lord Marchmont, who is ignorant of her existence. It is 1812 and war is imminent between England and America, but Henrietta sets sail to find her father. After a hazardous journey she reaches London and finally convinces him of her identity. But what of his beautiful young wife, his step-son and his two ambitious wards?