What episode is Tang Xiaolong calling knife elder brother in a nursing home?

The first episode. Gao Qi went back to his hometown for dinner during the Spring Festival. As usual, Gao Qiqiang paid money to benefit the village and hosted a banquet for the villagers to eat. The villagers are very grateful to him. His uncle casually talked about the anti-gang action against knife elder brother. Gao Qiqiang looked around, and his thugs were all called Tang Xiaolong "knife elder brother". The villagers looked at each other with trepidation.