During a space disaster, squad leader Gideon crashes on deadly Asuran. His wife Seraphina is taken by Star Reavers, key to the Ancients' plan to destroy Earth. With mystic Zariel's aid, Gideon unlocks armor, allies with alien clans, and discovers he is the lost king of the Ancients—a weapon hidden on Earth. He rejects godhood, unites all races, kills the High Priest, and saves Seraphina. But the Ancient Mother awakens—a greater war looms.