Revolves around the story of the former SWAT captain Donggu. Gangsters attack the court. Donggu suffers permanent blindness during the mission, and is forced to take responsibility for failure after the mission. Accompanied by his daughter, Donggu gradually got out of the haze and got used to his blind eyes. His old enemy reappeared and his daughter was in danger. To save his daughter, Donggu started a blind battle of life and death.