Serious case inspector Xi Gou (Zhang Jin) and his partner A De (Wu Yue) went to a fishing village to hunt down Jiang Guicheng, a gangster suspected of multiple murders, but unexpectedly discovered a large number of gang members' bodies and an astonishing amount of black market gold. A melee with ulterior motives turned into a battle of traps against two policemen by the whole rivers and lakes due to the intrusion of Xi Gou and A De. As the investigation progressed, Xi Gou discovered that Jiang Guicheng, who had super criminal intelligence, was so arrogant that he wanted to borrow the power of the No. 10 wind signal to plan a transnational plunder of a batch of underwater black gold worth more than 500 million yuan. He and A De became pawns in his plan. Not only did they not get support from the police, they were also wanted. At this time, A De was kidnapped as a hostage by the gang, and Guicheng had already gone out to sea. Xi Gou had to go alone in the stormy sea. When the madness was aroused by desperation and the bestiality was controlled by greed, which one was more important, truth or good and evil? Only a bloody battle in all directions can turn the tide!