The calm ocean sent a series of disturbing signals: in the Gulf of Mexico, a deep-sea oil transfer station was attacked by an unknown object and exploded. In the western Atlantic, a British royal submarine was hit by a terrorist attack, resulting in the destruction of the ship. American oceanographer Danny was invited by the American Academy of Oceanographic Sciences to investigate this series of inexplicable deep-sea disasters. The submarine of Danny and his party was seriously attacked from all directions during the deep-sea investigation. After losing more than half of the crew, they were finally surprised to find that the attackers turned out to be hundreds of giant sharks. At the same time, the United Nations has received alerts from sea areas around the world: more than 200 naval submarines have been attacked and destroyed, killing more than 3000 crew members. At the same time, this number is still increasing, and the whole ocean is in a great panic. After finally escaping the destroyed submarine, Danny and his party discovered a startling secret at the bottom of the sea: there is an unknown great white shark research and transformation base hidden in the depths of the sea. It turns out that during the Cold War, the United States Navy secretly created mutant great white sharks, making them a deadly weapon for attacks and attacks. And now, this.
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