John Lewis' cousins persuade him to go back 400 years in Iteria to prove that the sword named Calderwhich is actually the sword named Excalibur. Although John has enough weapons to "sink a battleship", his pride gets in the way and he is attacked by a non-magic sword and the loss of blood causes him to lose his memory. Can his cousin Gwendolyn save him? Will John be able to defeat Luther who has ensorceled Gwendolyn's family?