Special forces instructor Zhao Huan traveled through time and became a clan member of the Southern Song Dynasty. He originally wanted to live in troubled times, but when he saw that the mountains and rivers were broken and the court was in peace, he rose in anger. He formed the Iron Blood Battalion, improved firearms, and used modern tactics to defeat the Jin soldiers. However, he was suppressed by Qin Hui's gang members and Emperor Zhao Gou. With the secret assistance of Ci Zong Li Qingzhao's intelligence network and Han Shizhong, Zhao Huan worked step by step, growing from a side clan to the commander-in-chief of Northern Xinjiang with heavy troops. However, his great cause of the Northern Expedition not only faced the strong rival of Wanyan Jing, the sixth prince of the Jin Kingdom, but also got involved in the whirlpool of court intrigues. When he finally arrived at Kaifeng City, he was shocked to learn the truth about his time travel - history had already been changed by him, and a greater crisis was brewing in the north. Will recovering the old rivers and mountains extend the life of the Southern Song Dynasty, or open a new chapter for China?
