A historical biographical film focuses on the political career of the Khitan politician Xiao Yanyan (Empress Dowager Xiao), narrating her journey from entering the palace at age 16 to assist Emperor Jingzong of Liao in handling state affairs, to continuing to consolidate power and implement reforms after Emperor Shengzong of Liao succeeded to the throne. The plot covers events such as political marriages, appointing Han Derang to control military power, and quelling clan rebellions, showcasing the historical facts of how she promoted the economic development and ethnic integration of the Liao dynasty through military and political measures.