Chen Xiuying, daughter of the late military officer of Taiyuan, runs a teahouse with her mother. Before her father passed away, he decreed that the first man who could draw the Iron Bow, a family heirloom, would win his daughter’s hand. Shi Wen, son of the city’s mayor, makes advances toward Chen because of her beauty, but Chen’s mother drives him away. Kuang Zhong comes to provide solace and impresses the mother with his integrity. After a pleasant talk, Zhong takes hold of the iron bow and is able to draw it, and is accordingly engaged to Chen.
After failing in romance, Shi Wen decides to have his revenge on Kuang Zhong, and thus has his father order Zhong to deliver army provisions while dispatching bandits to rob him. Kuang is exiled to the frontier area for losing the provisions, leaving Chen behind. The wedded pair swears to uphold their wedding vows. After Zhong leaves, Shi Wen again attempts to force Chen into marriage, but she resists and ends up killing him. Disguising herself as a man,Chen goes to Kuang’s friend, Wang Fugang, to seek refuge. Fugang, who is in the midst of investigating Kuang’s case, is away under the leadership of
Governor Wang Yuanlong.Chen instead meets Fugang’s fiancee, Guan Fengying, who mistakes the cross-dresser for her fiance.
Chen leads the troops to Taiyuan and kills Shi Xulong, Shi Wen’s father. Yuanlong orders Wang Fugang to fight Guan’s troops. Consequently, the cross-dressed Chen and Fugang fight each other to a tie, andKuang Zhong is dispatched by Yuanlong to join in the fight. Revealing their token of trust, Chen is recognized by Kuang. At the same time, Fugang and Fengying are reunited.