Zhao Zhan, an expert swordsman, saves the life of Justice Bao Zhen during the Northern Song Dynasty and is rewarded for his brave deed. But Ji Pang, an evil minister who is hungry for power, uses Zhan’s name to provoke a group of legendary swordsmen known as the Five Mice of Xian Kong Island. Bai Yu Tang leads the Five Mice to the capital to locate Zhan and seek revenge. During their journey, the five swordsman hear about the evil doings of Ji Pang and his son and decide to go to Chen Zhou to deal with them first. When Justice Bao is framed by his enemies and put in prison, Zhan is left to protect the Song Dynasty on his own. Zhan needs the help of the Five Mice to protect the court against their mutual enemies, but how willing will Yu Tang be to help when the two men get entangled in a love triangle with Ding Yue Hua, a beautiful woman who wields a deadly sword better than any of her male contemporaries?

Based on characters from 19th-century Chinese novel The Seven Heroes and Five Gallants. Zhan Zhao, the South Hero, was granted the title Lord Cat by Emperor Renzong. Wu Yi, known as Five Rats of the Sky Island was disappointed to hear this. Bai Yutang, the fifth brocade mouse, was extremely furious. He swore to compete with Zhan Zhao. The Fire Immortal of the East Capital is offering ceremony to show the country's peace and prosperity. The Fire Immortal Statue is granted to pray for the world. His Majesty ordered Zhan Zhao to protect it. When Bai Yutang heard about this, he attempted to steal the Fire Immortal Statue for the dignity of the Five Rats. The brothers came one after another, but they accidentally got involved into a mysterious revenge case.

A confusing little period film in which 5 brothers and a sister all seem to have considerable kung fu skills and live on a secluded island. The younger brother for reasons unexplained keeps going to the mainland to challenge the constable to a fight. The constable is a good guy though and at some point during the film the brothers and sister and constable all team up to battle the real evil doer.