When the US nuclear submarine Montana was sailing under the deep waters of the Caribbean Sea, the submarine was secretly tracking an unidentified object with extremely fast underwater speed. Just as the submarine was about to approach the unidentified object, all the equipment on the submarine suddenly failed, and the submarine was subsequently destroyed. It was caught in a powerful turbulence, but it didn’t take long for the equipment on the submarine to return to normal. The soldiers and the commander on the submarine were surprised. At this time, the sonar detector actually showed that there was a deep feeling not far ahead. The bottom of the cliff. Suddenly the submarine hit the cliff, and the commander finally decided to release the floating ball with distress function, and the submarine slowly sank into the abyss. The navy received the distress signal and immediately sent a helicopter to the oil exploration ship Explorer near the accident area. Under the floating sea where the Explorer is positioned, the foreman Budon the high-pressure diving rig Deep Sea Heart received a call, and the head of the military and the head of the oil company on the sea ordered the drill. All personnel on stage immediately cooperated with the military to rescue the nuclear submarine. Then, the military sent a rescue team led by Lieutenant Kofi to the underwater rig along with Bard's wife, Linxi, an oil company female engineer .
Bud has been at odds with Lindsey recently, and the two quarreled constantly as soon as they met. Bud was very upset. Linxi, Bud and others drove several engineering submarines to find the nuclear submarine. Kofiand Bud led their personnel into the wrecked submarine and found that it was filled with sea water, and the cabin was floating everywhere. Corpses of officers and soldiers. This scene made Jammer, the diver brought by Bud, panicked. In order to calm Jammer, Bud asked Jammer to wait where he was, and he continued to search forward. Unexpectedly, Bud wandered for a while, and a strange object that Jammer had never seen before appeared underwater. Jammer was so scared that he turned his head and slammed into the cabin door. Because he was too nervous, the oxygen volume control valve of the oxygen supply on his back Has been unknowingly adjusted. Bud and Kofi arrived in time to rescue Jammer who had choked out. Almost at the same time, Linxi, who was driving the engineering boat outside the nuclear submarine, also encountered the strange object. After the object wandered away, the power inside the boat was restored. The rescue team returned to the Deep Sea Core Drilling platform. Linsi had a dispute with Bud because of the origin of the strange object. Lieutenant Kofi believed that this was a conspiracy by the Soviets. Linxi disagreed with Kofi's opinion and reported the situation to the officer on the sea. The officer also thought it was not like what the Soviets did. At this time, Kofi led people to the wrecked nuclear submarine without authorization, took down a nuclear warhead and secretly transported it back to the heart of the deep sea. The weather on the sea is getting worse and worse. The heavy winds and waves knocked down the crane on the Explorer catamaran. The iron arm of the crane fell into the sea and slammed straight towards the Heart of the Deep. The people in the drill floor watched the iron arm with the pipe connected to the drill floor falling rapidly above their heads, and finally fell on the side of the drill floor, but almost dragged the drill floor down the abyss.
After a catastrophe passed, the drill floor was bumped into water everywhere, and several people were killed and injured on the drill floor in a blink of an eye. The Explorer on the sea had already drove away because of the wind and waves, and the people on the drill floor had to repair the drill floor by themselves. Linxi dived alone outside the drill floor to repair the drill floor, and her power was once again interrupted for no reason. She noticed that the blue mysterious monster appeared in front of her again. After the monster wandered away, another bright object swam and stretched out her tentacles to touch each other with her hands. Linxi happily returned to the drill floor cabin, washed out the photos she had just taken for everyone to see, and thought it was some kind of intelligent creature that was not human. The situation Linxi saw made Lieutenant Kofi extremely horrified. He and his men secretly took apart the nuclear warhead and prepared to use this nuclear warhead to fight to the death of the Soviet special forces he identified. Linxi learned of the situation to dissuade Kofi, but at this time Kofi seems to be in an abnormal mental state. That night, Kofi suddenly detained Bud, Lindsay, and others, and submerged out of the rig alone in an engineering boat loaded with nuclear warheads. Bud and others rushed out of the room and caught up with Kofi, and Lindsay drove another engineering boat to intercept Kofi. The two sides fought a life-and-death fight under the sea. Kofi's submarine was eventually smashed and was buried in the bottomless abyss along with the nuclear warhead. Lindsay's submarine was also broken, but fortunately Bud dressed in a diving suit to rescue Lindsay back to the rig. Regardless of the danger of his life, Bud put on a deep-water pressure-resistant diving suit and dived under the abyss, risking his death to find the nuclear warhead that Kofi had brought down the abyss, and removed the fuze on the warhead. Just when the oxygen that Bud carried with him ran out and his life was dying, the strange object reappeared and dragged Bud to the glorious alien base, saving Bud's life. The sea was calm and the waves were calm, and the Explorer drove back to search for the heart of the deep sea. A huge object floated on the bottom of the sea, and the alien base took the desperately surviving Bud to lift the Heart of the Deep and the Explorer out of the sea.
