Realising that his jousting opponents always let him win because he is the royal prince, Arthur pretends to leave court and enters the lists in disguise to win on merit. He stays with Guinevere, who tells him some home truths about his arrogance, and they kiss. Moorish assassin Myror, paid by neighbouring king Odin (whose son challenged a reluctant Arthur to a duel and lost his life) arrives at Camelot to kill the young prince. He enters the joust with a lance hiding a dagger on its tip, but Merlin uses magic to defeat and kill him. Arthur has learned some humility by his experience but tells Guinevere that Uther would oppose any romance between them.

With the help of King Odin who blames Arthur for the death of his son Morgana invades the Kingdom of Nemeth in another attempt to take over Camelot. While Odin holds King Rodor of Nemeth hostage Morgana in disguise as a lady in waiting and Princess Mithian seek help from Arthur and his knights