William Augustus Grey, a seasoned cargo pilot navigating the skies in the pre-war era, finds his ordinary journey derailed when he unwittingly crosses into the Bermuda Triangle and emerges in the Void—a bewildering dimension existing between realities. Stranded in this alien realm, Grey quickly learns he has stumbled into an ongoing conflict: a hostile extraterrestrial civilization known as the Watchers has enslaved a population of human castaways who have been trapped there for years, fighting a losing battle for survival. Desperate to return to Earth, Grey reluctantly joins the Survivors' ranks and becomes embroiled in their war against their cosmic captors, using the resistance movement as his path toward discovering a way home.