In the twenty-seventh year of Jiajing's reign, Jizhou garrison Shen Mo discovered that the enemy troops were equipped with Ming army standard firearms when resisting the Tatar invasion. During the investigation, they met military doctor Xu Qingluan, and the two gradually uncovered the arms smuggling network colluded by the Ministry of War and eunuchs. When Shen Mo was about to submit the memorial, the court accused him of "unauthorized provocation". In order to prove his innocence, Shen Mo led the remaining troops to go deep into the grassland to search for evidence, and accidentally discovered the truth about Xu Qingluan's brother being detained by the Tatars. In the end, in the decisive battle of Hetao, Shen Mo and Arutai reached a brief peace, and their grievances were washed away with military exploits, but the deeper court struggle had just begun...
