The year is 7,621 and the last vestiges of mankind survive on four, manmade worlds. It has been three-thousand years since all life ended on Earth. What remains of the human race has been forced to evolve. Titus Trebonius is the 61st incarnation of the original Earthman and like his earliest ancestor he is a warrior. People living on four artificial worlds were all that was left of mankind, in varying orbits about the solar system, each world had been designed and built by a ruling class to save themselves from Armageddon. Three of the four worlds serve their intended masters one, however, has escaped their clutches and is inhabited by people who call themselves "Terrans" in difference to the last democratic nation on earth. Descendants who had taken this world by force, and for the past three millennia have been in a constant state of war.