During the turbulent times of civil war and warlord separatism, warlord Cao Shaolin (Louis Koo) was brought to justice by Yang Kenan (Andy Lau), the head of the Pucheng Defense Corps, for killing three people. However, the Cao family is very wealthy and powerful, and they use their power to intimidate the residents. After learning about the incident, Cao's colonel Zhang Yi (Wu Jing) rushed to Pucheng to take him away. In the city, he met his junior brother Ma Feng (Eddie Peng) who he hadn't seen for many years. Ma Feng is a ronin with high martial arts skills. Seeing injustice on the road, he wants to draw his sword to help, but he is faced with a choice between justice and brotherhood.