An ingenious Yankee mechanic, knocked unconscious in a fight, awakens to find himself at
Camelot in A.D. 528. Imprisoned by Sir Kay the Seneschal and exhibited before the knights of the Round
Table, he is condemned to death but saves himself by posing as a magician like Merlin, correctly predicting
an eclipse, and becoming minister to King Arthur. He increases his power by applying nineteenth-century
knowledge of gunpowder, electricity, and industrial methods. However, when he attempts to better the
condition of the peasantry he meets opposition from the church, the knights, Merlin, and the sorceress
Morgan le Fay.