The plot revolves around the Qimen Mechanism Volume that unexpectedly appears in the Ghost Valley Tomb. The Qi and Chu dynasties send men to the tomb to retrieve the treasure volume, resulting in heavy casualties on both sides. Upon receiving the letter from Mu Yuan, Mo Xin, the Mohist leader, rushes to the Ghost Valley Tomb with his senior, Gongshu Ye, and his junior, Ah Bao, with the hope of ending the war. But after overcoming all kinds of obstacles and destroying the conspiracy of the Ghost Valley’s old scumbag, they encounter a greater crisis. Ultimately, the trio work together to resolve the crisis.