In the battle of the Bagua formation, the allied forces of Sun and Liu significantly weakened the morale of Cao's troops. Cao Cao (played by Zhang Fengyi) was deeply worried about this, and coupled with the heavy casualties among his northern troops due to the unfamiliar terrain, it exacerbated his migraine, for which he was fortunately cared for by his maid, Li Ji (played by Xiao Song Jia). Sun Shangxiang (played by Zhao Wei) disguised herself to infiltrate Cao's camp, gaining the favor of the sergeant major (played by Tong Dawei) to steal military secrets. To adapt to naval warfare, Cao Cao took the advice of the surrendered generals from Jingzhou, Cai Mao and Zhang Yun, to connect their warships with iron chains. Subsequently, Cao Cao's strategist Jiang Gan (played by Shi Xiaohong) actively requested to visit his old friend Zhou Yu (played by Leung Chiu Wai) to gather intelligence. Zhou Yu, seizing the opportunity, pretended to be drunk to leak military secrets, allowing Jiang Gan to bring back false information, which led to Cao Cao mistakenly killing Cai Mao and Zhang Yun out of anger. Cao Cao disposed of the bodies of his soldiers who died from the plague into the river, calling them 'Ghost Soldiers,' intending to disturb the morale of the Sun-Liu alliance. Seeing this, Xiao Qiao (played by Lin Chiling) decided to secretly visit Cao's camp to persuade him to withdraw his troops. Everything seemed ready, but the wind was not in their favor, so Zhou Yu sent Lu Su (played by Hou Yong) to seek assistance from Zhuge Liang (played by Jin Chengwu)...