Kyle Bradford was a meat cutter in a grocery store when the sounds first thundered across the skies, and the world changed forever. The doors had opened, and something was coming through.Once the initial shock and confusion wore off, and those in charge realized what was happening, mankind seemed to coalesce like never before. National boundaries no longer mattered. Religion, race, color and creed seemed to pass away in a flash. Old enemies put their differences aside. The only thing that did matter was survival.As a species.Now, Kyle is on a mission to save what's left of our world. Or die trying.