话说每年美国国庆，亚利桑那州的维多利亚湖都会聚集由四方八面而来的人群。他们只为享乐，惹得本土原住民的讨厌。正当成班年青人要盘算，如何应付这群麻烦老坑之际，真正的危机才悄悄出现。地壳变动，河床崩裂，竟然把数以千万计的原始魔...

Charlie is a troublesome 18-year-old who breaks out of a youth drug treatment clinic, but when he returns home...