Amid worldwide chaos and devastation following the sudden disappearance of millions of Christian believers, four form an insurgent cell group— the Tribulation Force. Rayford Steele, Pan-Continental Airlines pilot; Buck Williams, crack journalist for Global Weekly; Bruce Barnes, assistant pastor at New Life Community Church; Chloe Steele, university student. Nicolae Carpathia is establishing a one-world government. But what he calls world peace the Tribulation Force knows will mark the end of the world. Can four ordinary citizens stand against this powerful and charismatic leader before his vision for world domination succeeds?