The crew warps to 490 B.C., saving lives at the Battle of Marathon. Later, Bon carelessly changes history and must take the place of an important herald.
After getting an earful from Ream about flaunting his new gear, Bon and team travel to 800 B.C. where they assist an ancestor's risky sea voyage to Japan.
In his next mission, Bon is off to the very distant past of 2592 B.C. Egypt, where he works with Ream to save the innocent Thoth from being buried alive.
After narrowly escaping erasure, Bon must learn the ropes of being a Time Patrol agent. His first mission: 1947 Tokyo in the midst of Typhoon Kathleen.