Scientists have no doubts: The Earth will not be able to avoid a collision with a powerful comet approaching it, and its consequences will be catastrophic. The prominent engineer John Garrity and his family are among the chosen ones who have been offered a safe haven in a secret bunker in a remote area. Most of society does not get this chance. While fragments of a disintegrating comet destroy cities and kill thousands of people, the world is plunging into chaos. There are riots, robberies are the order of the day, and the services are losing control of the situation. In such circumstances, getting to the evacuation site becomes a deadly challenge. The moment of the decisive blow is approaching inexorably. John is ready to do anything to save his wife and beloved son. The next several hours will decide everything.