The film tells the story of Mr. Six, a famous codger in the capital who has been abandoned by the times and is left alone with his old brothers to cling to his way of life. His son, Xiaobo, has been detained by the police, and in order to save him, he and his buddies teach them a lesson.
- Feng XiaogangMr. Six Zhang XuejunMain Role
- Zhang HanyuMen San ErMain Role
- Kris WuXiao FeiMain Role
- Liu HuaDeng Zhao ErMain Role
- Li YifengXiaoboMain Role
- Liang JingWife of Deng Zhao ErSupport Role
- Lu NuoA BiaoSupport Role
- Shang YuxianXiao Tai MeiSupport Role
- Lian YimingYang Huo ErSupport Role
- Yu HeweiUncle GongSupport Role
Once glorious "Lao Pao Er" Mr. Six struggled to adapt to the tremendous changes in society and found himself living a boring life, lurking in the depths of the hutongs, spending his days idling, meddling, and complaining.
One day, a tremendous emotional conflict erupted between Mr. Six and his son, Xiaobo, also known as "Xiao Pao Er" This conflict led Xiaobo to leave home in a fit of anger, only to encounter a plot against him and be illegally detained by the rising generation's "Young Master" Xiao Fei.
In order to rescue his son and repay his guilt towards him from years past, Mr. Six reemerges into the world. Using his own principles, Mr. Six attempts to resolve the situation but frustratingly realizes that both the era and his own physical condition have changed greatly. The inevitable clash between father and son, as well as the confrontation between old and new forces, cannot be avoided.
During the process of resolving the mess, Mr. Six discovers issues with his own body, realizing that he is truly incapable. However, through the process of painstaking investigation, he manages to catch hold of the handle of the "San Huan Shi Er Lang". The two of them issue a challenge and decide to settle their differences through a one-on-one duel.