King Charles VI declares that Knight Jean de Carrouges settle his dispute with his squire, Jacques Le Gris, by challenging him to a duel.

In the days of King Henry IV, stalwart young Myles and his sister Meg have been raised as peasants, without any knowledge of who their father really was. But one day, they journey to Macworth Castle. There, Myles falls in love with Lady Anne Macworth, makes friends and enemies, and learns to be a knight.