When a massive earthquake strikes, divorcing couple Callie and Peter Carson's one thought is to reach their 4-year-old son. As they move through the rubble of their small town, sights and sounds trigger visions of a previous trauma for Callie. Can they put aside their differences long enough to reach their boy? Can Callie struggle through the tide of memory that threatens to swamp her sanity? Will the earthquake force both of them to see through the rage and disappointment of their marriage to what is truly important?