An ancient well sealed away in the backyard of Zhao Ye's home turns out to be a space-time passage connecting to a chaotic era a thousand years in the past. On the other side, war rages everywhere, and a valiant female general is trapped and surrounded by enemy forces. Her army is desperately short of food, supplies, and military equipment, and defeat seems inevitable. By chance, Zhao Ye, a man from the modern world, opens a passage between the two worlds. Using the ancient well to travel back and forth, he continuously delivers modern supplies and cutting-edge high-tech equipment to the ancient battlefield. With the power of the modern world at her side, he fights alongside the female general through rivers of blood, helping her turn the tide of battle and face a ruthless enemy chieftain.