A massive influx of glacial melting triggers a new ice age in the Northern Hemisphere, forcing a family to make their way across the ice-covered landscape before they are frozen out for good.

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.

Two genius brothers grow up and grow apart as one becomes a successful surgeon and the other pursues a drug-fueled high life.