清朝末年孟家因支持革命被定罪灭满门。处决当天，还是少年的孟二奎被少年关一龙师父余胜英所救。孟二奎感念余胜英，于是拜在他名下跟关一龙一起跟着他学唱戏，孟二奎和关一龙自此成了师兄弟。那时摄政王是个戏痴，尤爱余胜英演的大武生，于是赐给余胜英一块“武生泰斗”的金匾。上海滩另一个武生岳江天不服，在余胜英演出当日前去挑衅夺走金匾。余胜英当众颜面扫地，从此一蹶不振。关一龙和孟二奎决定为师父报仇。两人憋着一股气苦练功夫，两人学成后抱着复仇的想法来到上海滩。他们初生牛犊一般挑战当时已经红遍上海滩的岳江天，岳江天竟然落败。岳江天羞愧难当当场自尽，关一龙兄弟俩夺回金匾大仇得报。为了保住岳江天的岳家戏班，岳龙天的徒弟当家花旦木兰忍辱负重答应剧院老板，同意与孟二奎和关一龙两兄弟搭班演出

At the end of the Qing Dynasty, the Meng family was convicted and destroyed for supporting the revolution. On the day of the execution, the young Meng Erkui was rescued by the young Guan Yilong's master Yu Shengying. Meng Erkui was grateful for Yu Shengying, so he worshiped Yu Shengying under his name and learned opera with Guan Yilong, and Meng Erkui and Guan Yilong have become brothers since then. At that time, the regent was a drama idiot, and he especially loved Yu Shengying's great martial artist, so he gave Yu Shengying a golden plaque of "Martial Arts Master". Another martial artist in Shanghai, Yue Jiangtian, refused to accept it, and went to provoke Yu Shengying to take away the golden plaque on the day of Yu Shengying's performance. Yu Shengying was humiliated in public and never recovered from the fall. Guan Yilong and Meng Erkui decided to avenge their master. The two practiced kung fu with a sigh of relief, and after they finished their studies, they came to Shanghai Bund with the idea of revenge. They challenged Yue Jiangtian, who was already popular in Shanghai at that time, like newborn calves, but Yue Jiangtian lost. Yue Jiangtian was so ashamed that he committed suicide on the spot, and Guan Yilong and his brothers took back the golden plaque to avenge their great revenge. In order to keep Yue Jiangtian's Yuejia troupe, Huadan Mulan, Yue Longtian's apprentice, bears the burden of humiliation and agrees to the owner of the theater, agreeing to perform with Meng Erkui and Guan Yilong