Lin Chen traveled through the city and became the eighth son of the Duke's Mansion. All his father and brother died in battle, shouldering the heavy responsibility of reviving the eighth son. On the order of the empress, he went to Jiangnan to investigate the old cases of water smuggling and the murder of his father and brother. The Cao Gang in the south of the Yangtze River colluded with corrupt officials and secretly communicated with the barbarians in the north. Attached to the mysterious killer organization Ziyilou. Lin Chen set up a plan step by step, held a birthday party, recovered Zhao Zilong and the army, and destroyed the conspiracy. Later, Yanhui Pass was massacred by the barbarians and Ziyilou. Lin Chen led his army northward to regain the border pass and defeated the enemy. After returning to Beijing, Ziyilou instructs his treacherous ministers to trap Lin Chen. Lin Chen uses his plan to completely destroy Ziyilou. Soon the northern army invaded again, and Lin Chen went out with the army to protect his family and country.
