Ui-Gang was once a legendary hitman. While his wife goes on a trip with her friend, she asks him to take care of her friend's daughter, Yoon-ji. He doesn't want to be bothered by the teenage girl, but she gets stuck with juvenile delinquents and Ui-kang unavoidably uses a little bit of violence to protect her.However strangely, the juvenile delinquents are found dead, and he is suspected of murder. Even worse, Yoon-ji is the kidnapped. Ui-Gang is forced to pull out his gun again, an eye for an eye and blood for blood.