Grace Dalrymple Elliot is a British aristocrat trapped in Paris during the French Revolution. Determined to maintain her stiff upper lip and pampered life despite the upheaval, Grace continues her friendship with the Duke of Orléans while risking her life and liberty to protect a fugitive.

The film chronicles Perceval's knighthood, maturation and eventual peerage amongst the Knights of the Round Table, and also contains brief episodes from the story of Gawain and the crucifixion of Christ.