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.

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 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.

While on a mission in A.D. 628 at the Tian Shan Mountains, Bon realizes that the group they're trailing inspired the epic "Journey to the West" tale

The crew takes a vacation to the late Jurassic period but ends up thwarting a poacher whose unrepentant hunting might threaten all of humanity.

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?