By the year 2176, the planet Mars, long inhabited by human settlers, has become the manifest destiny of an over-populated Earth. Nearly 640,000 people now live and work all over Mars, mining the planet for its abundant natural resources. But one of those mining operations has uncovered a deadly mother lode: a long dormant Martian civilization whose warriors are systematically taking over the bodies of human intruders. Lt. Melanie Ballard of the Martian Police Force is on transport assignment to bring James "Desolation" Williams, the planet's most notorious criminal, to justice. Williams has no plans to make Ballard's job easy. What begins as a battle of force and wits between cop and criminal soon turns into something more fundamental: a battle for human survival in the realm of the Martian warriors. It's civilization against civilization as Ballard and Williams join forces in mortal combat with the Ghosts of Mars.