Sir Lancelot travels from France to pledge his allegiance to Arthur Pendragon, whose fame has spread far and wide. Arthur is named king after he draws the sword Excalibur from the stone in which his father had placed it. Arther isn't the only claimant to rule as Mordred also has his eye on the throne. Sir Lancelot is immediately attracted to a beautiful woman not realizing she is Guinevere and promised to Arthur. He is loyal and true to his King. Mordred takes advantage of the situation but his treachery is uncovered in the end. It does not lead to a happy ending however.