Four families in a Heartland town are tested in a single day when a tornado hits, forcing paths to cross and redefining the meaning of survival.

A frustrated writer struggles to keep his family alive when a series of global catastrophes threatens to annihilate mankind.

In the aftermath of a massive earthquake in California, a rescue-chopper pilot makes a dangerous journey with his ex-wife across the state in order to rescue his daughter.

A volcano erupts in downtown Los Angeles and a city official and a seismologist try to stop its inevitable flow through the city.