During the reign of Emperor Suzong of Tang, the royal family was troubled by internal and external troubles. The prince Li Tan was framed by the queen and died, and the eldest prince Li Chu was grief-stricken. In the court, Empress Zhang and Shi Siming slandered Li Chu, resulting in Li Chu's military power being taken away. In order to cheer up Li Chu, Dugu Jingyao proposed to marry into the palace to assist Li Chu. Faced with Dugu Jingyao's kindness and his love for his wife Zhenzhu, Li Chu was in a dilemma. For the future of Li Chu and the Tang Dynasty, Zhenzhu took the initiative to let Li Chu divorce her and marry Dugu Jingyao, after which Li Chu was made the crown prince. The schemes of Empress Zhang and Shi Siming became more and more vicious as Li Chu ascended to the throne step by step, and Shi Siming tore off his mask and rebelled. In the court, Empress Zhang's scheme to establish another crown prince was also discovered by the loyal minister Li Qi, and the position of crown prince was saved. Empress Zhang, who was doomed to fail, struggled desperately and tried to kidnap Zhenzhu to threaten the crown prince Li Chu. Li Chu exposed Empress Zhang's trick in front of the emperor, and the queen finally suffered the consequences. With the help of loyal ministers and generals and Dugu Jingyao, Li Chu successfully suppressed the rebellion. The Tang Dynasty was finally stable. After experiencing ups and downs, Li Chu ascended the throne and continued the glory of the Tang Dynasty.