Chen Yan, a top student in the Department of Modern History, was transported back to the late Qin Dynasty in an accident and became a Guizhou leader struggling to survive outside Xianyang City. Facing the troubled times when harsh rule was more severe than tigers, he relied on his historical knowledge and modern thinking to make a name for himself by using small strategies to avoid corvee labor. He was noticed by village officials because of his amazing oral arithmetic. He also alarmed the county guard with his method of improving iron tools. Finally, he enlisted in the army and became the captain of the Qin army.
In the military camp, he reorganized his troops with military training methods that transcended the times. He used improved crossbows and formation tactics to repeatedly defeat the Huns. He was promoted from a hundred generals to captains. He even shocked Xianyang with his strange tactics of attacking enemy camps at night and burning grain and grass. When he met the First Emperor, he presented his steel-making skills and border defense strategies, was granted the title of military marquis, took charge of weapons improvement, and gradually transformed the Qin army into a tiger and wolf division equipped with firearms and well-coordinated.
From attacking the Xiongnu in the north and expanding the territory thousands of miles, to conquering Baiyue in the south and digging canals, and then sending troops out of the Western Regions to connect the Silk Road, Chen Yan led the Qin army to sweep across all directions. Facing the undercurrent of the court and the chaos of the late Qin Dynasty, he cleared the emperor's side and settled the Central Plains. Finally, he took over the baton of history, established a new dynasty, implemented the New Deal, sow the fire of Chinese civilization to the Western Regions, Haidong and even further continents, and wrote a legend from the head of Guizhou to the emperor, leading the invincible world of China.