As an investigator of modern miracles, Paul finds the result is always the same: a mundane explanation and a crowd of disappointed believers. With his faith dwindling every day, his only belief is "we're all alone down here." After experiencing a miracle he can't explain away, Paul joins forces with Alva Keel, a former Harvard professor and current investigator of the paranormal. Both men believe the other possesses the key to a larger mystery. With the help of former police officer Evelyn Santos, these investigators will go anywhere and do anything to uncover the unexplained and try to find a solution to the coming "darkness" ... before it's too late.