An unknown mutation swept across the ocean. The originally docile aquatic creatures were completely distorted, grew ferocious scales, and became violent and murderous. The offshore sea became a dead sea. Human fisheries collapsed and survival was in danger. An old fisherman {Chen Yang} narrowly escaped death in a shipwreck and unexpectedly awakened the ability to communicate with mutated fish. The fish language in my ears contains the truth about the changes in the ocean, the location of resources, and a terrifying warning that could destroy mankind. He relies on this special ability to survive in dangerous waters and collect scarce resources. He also wants to inform humans on the shore of the deadly crisis in the deep sea. But doubts and suspicions follow one after another, the threat of mutant fish swarms is approaching step by step, and the terrifying existence of the deep sea is quietly approaching. Chen Yang was forced to swim between the violent ocean and the indifferent land, using the language of fish as a bridge and being alone as a sentry. Under the shadow of the mutated scales, he guarded the last line of ocean defense for mankind.
