An ominous cloud is slowly moving inland, forcing the population to run away. As the cloud keeps on moving forward inescapably, panic strikes. The cloud is acid.
美国某户人家,孩子们笑语欢天,快乐非常。女主人梅格(劳拉·爱伦 Laura Allen 饰)正为儿子杰克(Christian Distefano 饰)准备生日宴会,但是一同突然打来的电话让她慌了手脚。原来他们之前雇佣的小丑临时有事来不了,梅格只得打电话求助在外工作的丈夫——房地产经纪人肯特(安迪·鲍尔斯 Andy Powers 饰)。肯特走投无路,偏巧在负责…