A small town, desperate to recover from hard economic times, is under threat when voracious Snakehead fish mutate and survive previous lake chemical poisonings.

• 一个为从经济危机中恢复而铤而走险的小镇，时下正处于在化学有毒物质污染的湖泊中幸存下来，突变的凶残的黑鱼威胁下。