Plot

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.—don @ minifie-1

Realizing he can't prove his value as long as no knight dares use full force against a royal heir, even in tournaments, noble Arthur decides to pretend traveling north for four days. He secretly stays with Gwen, who expects more guest-like then aristocratic attitude, and trains a rustic for a double act - as "country knight Sir William" - to compete in the royal tournament. Lord Odin has hired a fearsome hit-man to revenge his son's death from a duel against Arthur. Seeing poor page Merlin, who has to keep serving Gaius as well as attend to "Sir William," puts the killer on the prince's trail.—KGF Vissers

With an upcoming jousting tournament to train for, Arthur is angry at the preferential treatment he receives from the other knights because he is to be the future king of Camelot. He concocts a plan to enter the tournament under a duel identity, with the help of Merlin. They employ a lowly farmer to pretend to be a new knight entering the tournament, but when it comes to the actual tournament, the young prince will don his amour and fight himself, so that if he wins he will know he has truly earned the victory. Creating a story to remove himself from the castle, Arthur is forced to live with Gwen, which, due to the prince's arrogance and rudeness, is more than she can put up with. Things become more difficult as King Odin, the ruler of a neighboring Kingdom, wants Arthur dead, holding him responsible for the death of his son in a duel. Odin has sent Myror, a deadly assassin, to kill Arthur. With attempting to keep the prince's plan a secret as well as managing the looming threat, Merlin has his work cut out for him.—Robert McElwaine

After winning easily in a pre-tournament jousting practice, Arthur suspects his knights go easy on him, just because he is the prince. He pretends leaving Camelot on a quest, so he can compete in the tournament undercover as 'Sir William'. As ever, Arthur receives Merlin's critical support. For the duration of the tournament, Arthur stays at Gwen's house, where at first Arthur's insensitive behaviour causes friction between the pair. However they eventually grow closer together. Meanwhile, as the tournament progresses, Merlin is having a far less romantic time as he tries to couple his work for Arthur/'Sir William' with Gaius's chores. After an emotional outbreak on Merlin's part, Gaius takes pity on him and gives him 'the day off'. All the while a murderer, hired by a northern lord who wants revenge on Arthur for killing his son, is trying to discover the whereabouts of the prince. With the whole of Camelot believing Arthur is not at home, it falls to Merling to protect his prince. He is rewarded for his troubles by having to clean Gaius's leeches tank, when the old docter discoveres Merlin has lied to him. For Arthur, the whole experience seems to have taught him humility, and the prince is once again a step closer to becoming a good king.