A modern young man accidentally traveled through time and became Li Tan, the King of Jianning who was about to die during the Anshi Rebellion. In the critical situation of Pengyuan, there is the suspicion of the emperor, there are traitors and traitors, and there are rebels outside. Life and death are only a matter of day and night. Relying on his foresight of history, he calmly retreated from the enemy. When the Manchu Dynasty was full of joy, he saw through the catastrophic disaster after An Qingxu succeeded to the throne, and resolutely asked for orders to leave Henan. It is necessary to stay away from the whirlpool of the court to survive, but also to guard the Jianghuai barrier, organize the army to resist the enemy, and save Suiyang from the catastrophe. A prince in crisis, relying on his wisdom and bravery, turned the tide in troubled times and restored a glimmer of hope for the Tang Dynasty.