With the court in turmoil and imperial power falling apart, the emperor's grandson Li Ni (played by Xu Kai), who was guarding the border, was forced to take on the task of countering the rebellion. He and Cui Lin (played by Jing Tian), the only daughter of the general who concealed his true identity, each led an army into the dispute.The two fought overtly and covertly among various forces and made dangerous moves. In several confrontations, they met their opponents and fell in love with each other. They staged a romantic love story in which they were hired by the country and the two powerful people went out for fun together.