Kenneth Jay

When chance brings Edward Tudor and Tom Canty together, they decide for fun to switch clothes and places. Exchanging their roles as heir to the throne of England and as a pauper's son, they learn how the other half really lives.

A blow on the head transports a Yankee to 528 A.D. where he proceeds to modernize King Arthur's kingdom by organizing a school system, constructing telephone lines, and inventing the printing press.