Story based on the teachings of the Bible; when the Rapture occurs, Jesus will save all his real followers. The rest of mankind is "left behind".In this first of a series, those left behind either realize why they've been left behind of they blame some force of nature. The world divides into two camps; good and evil. I think this series was written with the turn of the millenium in mind, taking advantage of people's fears. I tried to read the second book in the series, Tribulation Force, but it was poorly written and the characters continue to make obviously poor choices in spite of "knowing the truth". I just couldn't finish this book.