Three hundred years after the Great Zhou Dynasty was peaceful, the Qi gradually declined. The barbarians in the northern border were constantly knocking on the gates, and the chieftains in the southern border were in charge of their own affairs. At the court, the civil servant group headed by Prime Minister Zhang Jingzhi and the military faction led by Privy Councilor Li Chong fought openly and secretly, and the imperial power fell into the hands of the Queen Mother. In Yunmo City, Bianzhou, orphan Li Xiaobin followed his father's will and joined the army. However, due to his humble background and upright temperament, he was repeatedly suppressed by his superiors. Even half of the "loyalty and bravery" token passed down by his father was regarded as a laughing stock.
War broke out suddenly in the northern border, and Yunmo City's garrison was greedy for life and feared death fornicating with the barbarians, putting the city in danger. Li Xiaobin was ordered to do so at the critical moment. Relying on the fragments of his father's military book and his years of practical experience in fighting at the border, he combined the passionate soldiers of the army to repel the barbarian vanguard with a small victory and a large number. After this battle, he was framed and imprisoned for offending the powerful, and almost died. Fortunately, thanks to the secret help of his former benefactor and censor Su Qingyan, he was able to make meritorious service and be transferred to the Gyeonggi Forbidden Army.
Stepping into the center of the whirlpool of power, Li Xiaobin must not only deal with the intrigues in the court, but also stick to his original intention of protecting his family and country. He gained authority in the Forbidden Army and broke through the party disputes. He successively foiled the Prime Minister's plot to frame Zhongliang, exposed the military supply corruption case, quelled the mutiny of the Forbidden Army, and gradually won the trust of the young emperor Zhao Heng. At the same time, the barbarians from the north gathered hundreds of thousands of troops and went south, and the chieftains from the south also raised their troops to rebel. The Great Zhou Dynasty fell into a desperate situation of fighting on two fronts.