2010 A.D.: After the Nuclear Spasm, homo sapiens was extinct, save for a tiny remnant scattered in small, primitive space colonies. At first Solar Humanity had only one goal: survival. But when the battle for existence was won, humankind began moving outward in slow, multi-generation space ships, and as the millennia passed planet-based civilizations emerged in many star systems.
27,698 A.D.: To these new worlds come the Immortals, beings with strange ties to ancient Earth, beings who seem to live forever, who can travel light years in days-and who use their strange powers to control the existence of ordinary mortals.
On the planet Pentecost, a small group sets out to find and challenge the Immortals. but in the search they themselves are changed: as Immortals, they discover a new threat, not just to themselves, but to the galaxy itself.