洛杉矶的一个家庭在历史上最大的灾难的汇合中分开了：一个超级火山、一次特大地震和一次大规模龙卷风。当世界经受住这场几乎世界末日的事件时，我们的英雄们必须坚持自己的技能和智慧来团结和生存下去。

After an alien spacecraft destroys Washington, D.C., the residents of a small town must fight off a unit of alien soldiers on the hunt for the President of the United States and the mysterious device he's carrying after his escape chopper crash lands nearby.