In 1985, the smoke of gunpowder still lingered on the China-Vietnam border.
Zhou Rui, a top sniper codenamed "Mandrill", lost contact with his team during a tragic secret operation and was declared dead in a swamp behind enemy lines.
However, three months later, he crawled back from the death penalty zone with mysterious wounds and a blank memory. The only thing that "returned" with him was a notebook soaked in mud and blood and filled with codes that no one could decipher.
Returning to the battlefield and being transferred to the newly established "Blade" unit, Zhou Rui struggled to adapt to the familiar smoke and unfamiliar self. But under the calm there is a turbulent undercurrent: the report of the battle in which he "sacrificed" was vague; on the radio late at night, there was always a ghost radio wave from enemy-occupied areas, repeatedly calling his code name, and the voice was exactly the same as that of his "sacrificed" comrades...
When transnational spies quietly infiltrate and deadly conspiracies quietly weave a web along the border, Zhou Rui finds himself trapped in the center of the whirlpool. Are the brothers of life and death in the past really an illusion? Where do the strange secret words in the notes lead? And behind that battle that buried three months of his life, what kind of shocking secret was hidden that could overturn the balance?
Deep in the fog of memory, murderous intent descends silently. Bullets can destroy enemies, but only by retrieving the lost past can the most dangerous lies be exposed and the front lines behind the lines guarded.
This is a life and death hunt about memory, loyalty and truth. The hunter may have become the prey.
