Dr. Lewis Adams is gone, but his legacy lives on: The lunar colony; the trans-dimensional space program; the Gravity Drive.
General William Johnston burned to death in a nuclear inferno, but his legacy continues as well. His deadly pursuit of Adams uncovered the greatest secret in the history of science. Far from a mere engine, the Gravity Drive creates a portal to a parallel universe where spaceflight's twin challenges of gravity and atmosphere no longer apply. A universe whose properties explain the cosmic mysteries of Dark Matter and Dark Energy. The "Dark Sector".
As Lewis Adams predicted, General Johnston quickly recognized that the Gravity Drive even more than a portal, it is a weapon, the "World's Greatest Gun." Thus, the Dark Sector's significance goes far beyond scientific interest and exploration; it is a new Domain of War. The entire world now strive to recreate Adams' machine. Global superpowers will go to any length to acquire the technology.
Nearly all of the Gravity Drive-enabled shuttles and rocket ships were destroyed during the Battle for the Moon. The only remaining devices known to exist are in the possession of the lunar colonists themselves, the improbable Jacari tribe from remote Guyana.
As "People of the Sky", the Jacari fulfilled their ancient prophecy by escaping Earth to join their celestial mother on the Moon. Owners of the world's most coveted technology, they quickly realize that they are no safer in space than they were in their rain forest home. Their fears become existential when they discover that one Gravity Drive shuttle, believed destroyed, remains intact, and in the hands of General Johnston's most notorious henchman.
The United States, Russia, China, and India all covet the Gravity Drive; they all seek mastery of the