Zhao Zhan (Kevin Yan), an expert swordsman, saves the life of Justice Bao Zhen (Liang Guan Hua) during the Northern Song Dynasty and is rewarded for his brave deed. But Ji Pang (Ma Shu Liang), 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 (Chen Xiao) leads the Five Mice to the capital to locate Zhan and seek revenge.
