For 19-year-old Kallie Hunt, everyday moments began feeling all too familiar. She had a sense that she'd lived them before. But that was crazy, right? Deja vu. That was kid's stuff, right? Been there, done that. Impossible. You got one shot at this life thing. One shot. You lived. You died. End of story. But if that was true, then why would the government be interested in her? Why would priests literally be stalking her? How could a small town girl possibly have anything to do with saving humanity from terrorists and demons? And pray-tell, what does any of it have to do with her first love?...