生化制药厂的老板Franklin(塞缪尔·杰克逊 Samuel L. Jackson 饰)提供大量资金供让Susan McAlester博士(萨弗蓉·布罗斯 Saffron Burrows 饰)研究抗老年痴呆症的药物。Susan和研究小组在设备精良的海底研究中心,提取鲨鱼脑中蛋白质,注入坏死的人类脑细胞。为了可以提取到萃取更多的鲨鱼脑蛋白,Susan也同时加大了鲨鱼们的脑容量。这一举动让本来作为试验品的鲨鱼们变得更为强壮和聪明。鲨鱼专家Carter(托马斯·简 Thomas Jane 饰)因和鲨鱼们朝夕相处时发现了鲨鱼们的异样,并向Susan提出了警告,却得到了Susan的无视。终于,在最后一次验中,那些曾经沦为人类试验品的凶残鲨鱼们向人类展开报复
Bill Kiowa (Montgomery Ford) is released after a five-year prison term for a crime he did not commit. The bandit El Fego (Tatsuya Nakadai), who did the actual crime, also killed Kiowa's young Native American wife. Once free, Kiowa raises a gang to go after the man who framed him. An Italian western in the A FISTFUL OF DOLLARS mold with a better than average cast, which includes Bud Spencer in the debut of his heavy-handed character (later made famous in the TRINITY series) and the outstanding Japanese actor Tatsuya Nakadai, famous for his role in Akira Kurosawa's KAGEMUSHA. Written by horror-meister Dario Argento and presented here in the English-language version (which, considering it was filmed MOS with an international cast, is nearly as "original dialogue" as its Italian-language counterpart).
A misfit gang of runaways and orphans are taken in by a dark and charismatic father figure who together wreak havoc throughout swamps and trailer parks of central Florida.
故事发生在位于美国佛罗里达州的一座小镇内,一场猛烈的飓风在居民们措手不及的情况下袭击了该小镇。海丽(卡雅·斯考达里奥 Kaya Scodelario 饰)是一名游泳运动员,在训练中,她接到了姐姐打来的电话,姐姐告诉她,她们的父亲戴夫(巴里·佩珀 Barry Pepper 饰)失踪了。
政府命令小镇上所有的居民们都从家中撤离,但是海丽无法弃父亲于不顾,擅自折返来到了父亲的家中,果不其然,在地下室里,海丽找到了身受重伤的父亲,如果不是她即使出现,那么戴夫将必死无疑。现在,父女两人需要面对的,是逐渐被洪水填满的地下室,但很快,海丽就意识到,他们的对手并非这么简单,有一些邪恶而又凶暴的黑影隐藏在水面之下。