The year is 2311. Humanity has not only survived the apocalypse, but thanks to its technical prowess, it has flourished. Mankind has escaped the Solar System to populate dozens of other worlds. Exploration and colonization of the galaxy is happening at a blistering pace, and it seems nothing can stop it.

Earth was supposed to be a quiet backwater post for the Grim Reaper Squadron, where holdouts from the exodus could live peaceful lives away from Humanity's pursuit of technology. Fate, it seems, has other plans. While on routine patrol over North Korea, Navy Commander and Squadron Executive Officer Sandra Black discovers a subtle but puzzling anomaly no one can explain. A dozen Navy Seabees deploy to help the United Nations cope with the annual Hajj season, but find their efforts foiled by events as confounding as they are tragic. The most important international summit in decades is set to take place in the American Midwest, but new, deadly dangers threaten that meeting. And in Korea, the Land of the Morning Calm, Something...someone...threatens to plunge the defenders back to the stone age.

Through it all, Squadron Commander and Navy Captain Kyle Black struggles to be the leader his unit needs, as well as a husband, father, and mentor...