Time has passed; man has not discovered new naturally occurring planets capable of sustaining human life. Terraforming has allowed for some colonization across the galaxy, but the only method for moving supplies to and from these far-flung worlds is the use of timeshaft wormholes. To safeguard the planets and these portals, laws governing the "who, what, where, when, and why" of time travel routes are strictly enforced.

Suddenly, the Chronologic Patrol Ship Upholder -- charged with enforcing these stringent precepts -- is attacked at the Circum Central Timeshaft Wormhole in 5211 A.D. Unprovoked and unprecedented, all rules are blasted away in that deadly encounter, and it will take heroic measures to restore balance to the galaxy.