Modern man Zhang Shikang traveled through time and became the third son of a British prince during the Chongzhen period. Knowing that the Ming Dynasty was about to fall, he was determined to save the country. He persuaded his family to donate their property and joined forces with the "Second Son Regiment", a group of honorable men of his generation, to raise military pay and gained Chongzhen's trust. He was ordered to rectify the corrupt Beijing camp, implement new drills and three-stage weapons strikes, and create an elite division. He refused to establish slaves externally and captured Yue Tuo alive. He protected his loyal minister Lu Xiangsheng internally and fought against the Donglin Party. He was eventually awarded the title of Grand Marshal of the World's Military and Horses. With Chongzhen's ambition to personally conquer the Ming Dynasty, he shouldered the heavy responsibility of reviving the Ming Dynasty.