Lady of the Lake

Whilst Guinevere wants to leave Camelot with Leontes he is obliged to stay as one of Arthur's knights being trained by Gawain, a brilliant strategist, who breaks Arthur's sword in combat. Having warned Arthur to resist his feelings for Guinevere Merlin sets out to have a new sword made by reclusive bladesmith Caliburn, a widower living with his daughter Excalibur. (imdb)