The Legend of Qin: The Divine Farmer's Final Battle

The First Emperor, Ying Zheng, was wary of Xiang Shaolong, who knew how history would unfold, and desperately sought the elixir of immortality. So he sent an elite squad to transmigrate to modern Hong Kong and search for it. When they found nothing, they seized a cache of modern weapons and returned to report.

The elite squad used their weapons to surround Xiang Shaolong, who was living in seclusion in Shennongjia. But thanks to his knowledge of the terrain and exceptional strategic mind, Xiang Shaolong crushed them completely. The entire squad was wiped out, and Xiang Shaolong later used a surviving signal receiver to return to the modern era alone.

The First Emperor died suddenly from accumulated toxins after taking elixirs for years. The Qin court fell into chaos, and the land was thrown into turmoil. Xiang Yu seized the opportunity to gather his forces and rebel against Qin. He swept through the land, ultimately bringing down the Great Qin dynasty.