Director:
Susan and her research team extracted proteins from shark brains and injected them into necrotic human brain cells in a well-equipped underwater research center. In order to extract more shark brain proteins / Susan also increased the brain capacity of the sharks. This move made the sharks who were originally used as experimental subjects stronger and smarter. Shark expert Carter (Thomas Jane) discovered something strange about the sharks while living day and night with the sharks / and warned Susan / but Susan ignored her. Finally / in the last experiment / those ferocious sharks that had become human experimental subjects launched revenge on humans.
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
