In the countryside of France in 1165, the old duke has died, and a child has assumed his place. The peasants find themselves unprotected and at the mercy of the evil Sauval, a "treacherous, bloodthirsty pair of brothers" who take their money and possessions and kill anyone who gets in their way.

Fifteen year old Conan is training for the knighthood and witnesses the Sauval firsthand as they plunder a neighboring castle. He rescues the only survivor of the family, their daughter Anne. She is taken in by the family that Conan is staying with.