Sixty-five million years ago, a comet hit the earth, putting an end to life as it then was. Now, a comet is about to hit the earth again. Fernando Martinez sets off to be with his family at home, the Vaton family in France seeks shelter, and the Baka pygmy tribesmen continue to hunt, unaware of the impending disaster.

An asteroid hits the earth in the Mexican province of Yucatan in 2007. The entire earth sinks into darkness. Paris, New York, Hawaii, and every human city are all in complete darkness. All plant life dies out as a result of the lack of sunlight. Temperatures fall below anything ever experienced before. Many survivors are left absolutely alone and must fend for themselves.