Twelve-year-old Kevin is quietly doing his homework in 1999 when a fully-armed archer tumbles through space and time and into his bedroom,and upon verifying that the intruder is Chu-mong, a Korean king and folk hero from the ancient past, he works to find a way to send Chu back before history is altered forever.

After being cracked on the head with a crowbar at the Colt factory in Hartford, Connecticut, Hank Morgan awakens to find himself in sixth-century England. Captured by a knight and sentenced to death by King Arthur, the cagey Yankee instead becomes the king's right-hand wizard. Though homesick for the nineteenth century, Morgan makes the best of his surroundings, setting up factories and phone lines, as well as introducing such strange customs as advertising...

The Time Soldiers journey to ancient Egypt and discover an Egyptian tomb and a boy king who wants to keep them prisoner.