A new knight comes to offer his services to King Arthur in the shape of Guido de la Porte, but little realizes the part he will have to play in events to come. As Morgan secretly plots her revenge on Arthur, Agravain notices the close relationship between Sir Lancelot and Queen Guinevere and decides to spread a rumour to the other knights. Meanwhile Arthur decides to hold a tournament which Lancelot decides to enter in secret, taking refuge in friend Vavasour's cottage to put on his disguise and in the process meets his daughter Eleanor. And he proves needful of her help when events take a sinister turn.