While at his friend's home, Bon Namihira accidentally witnesses time travel in action and finds out that to keep it a secret, he must be erased.

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.

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.

Bon and Ream go back 350 years, arriving in Southern France to prevent the torture and death of Celine, a potential victim of Europe's witch hunts.

In 1500 B.C. on Crete, Bon and Ream experience the dire consequences of neglecting their Time Boats. Will they be able to save their targets in time?

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.

Bon and Ream become stranded in the future while on a dangerous mission to rescue a "Time Tripper." Will they be able to find their way back home?

In 3319 B.C. Sumer, a young boy develops the beginnings of an ancient writing system — but his village is under threat from raiders and needs protection.

The crew's next mission takes place 21,000 years ago in Southern France where their target is a Cro-Magnon boy who has been cast out from his village.

After Yumiko gets a promotion, the crew travels to 1229 B.C. Troy, to save their target. Bon's pride gets in the way when Yumiko comes up with a plan.

The crew saves an older man in 14th-century France from the plague. Later, after learning that he's still in danger, they launch another rescue mission.

Using everything he's learned as a Time Patrol agent, Bon is determined to stop the Dimension Ball. Will he make it in time before space-time collapses?