Su Ming, a doctor of history, accidentally traveled to the Mongolian grassland in 1180 and was taken in by the young Temujin. Relying on modern military knowledge and historical foresight, Su Ming, as a "strategist", assisted Temujin in training new troops, improving tactics, and dealing with various grassland tribes. From rescuing Borte, uniting with the Kelei and Zadalan tribes, to defeating the many with less in the Thirteen Wings battle, Su Ming not only helped Temujin rise in a dangerous environment, but also promoted institutional changes and sown the seeds of the future empire. However, the intervention of the Jin Kingdom, the rebellion of allies, and internal rebellions ensued. Su Ming must weigh the historical trajectory and personal destiny, and embark on the journey to unify the grasslands with Temujin...