Every media outlet is buzzing with news of a comet approaching Earth, but civil engineer John Garrity is more concerned with saving his crumbling marriage. That evening, they have planned a party with their neighbors and are going to the supermarket to buy groceries, when John suddenly receives a message from the president, informing him that he and his family have been selected for rescue in a secret bunker. At first, he ignores it, but soon the shockwave from the comet's first impact with Earth reaches their quiet village, and every television channel begins to flash images of horrific destruction. John, getting into a car with hi...