Quando um meteoro de enorme proporção ameaça destruir a Terra, um grupo de cientistas corre contra o tempo para encontrar uma maneira de salvar a humanidade da extinção.

Scientists discover the "Big One" is coming soon, and with it everything west of the San Andreas Fault will sink into the ocean. The scientists try to stop the quake, but as foreshocks turn California into chaos, it's a race against time.

As mass of solar storms causes tsunamis, volcanoes, and flooding, a city-dwelling family attempts to flee to the relative safety of a group of high-elevation caves several miles away.