Li Rong and Pei Wen Xuan argue frequently, their bickering a daily occurrence, yet they exhibit perfect harmony when it comes to strategy. While investigating the Yang family, they simultaneously begin amassing military strength for the crown prince. In a display of tacit understanding, they temporarily set aside their past grievances involving Qin Zhen Zhen and travel together to Jiulu Mountain, seeking to enlist the help of Qin Zhen Zhen’s brother, the brave General Qin Lin, who has been living in seclusion in the mountains.

李蓉与裴文宣一起前往九庐山，想请出秦真真的兄长——隐居山中的虎将秦临，却被对方拒绝。关键证人拓跋燕逃走，世家安排刑部以看守关键证人不力的理由拘捕裴文宣，裴文宣下狱。拓跋燕受制于李蓉，令世家紧张，尤其是以上官家为首，便寻了个借口将李蓉也一并下狱。李蓉下狱后，李川带着秦真真来看望。秦真真道退婚一事完全是她自己自愿，与家人无关，裴文宣尴尬，引得李蓉发笑。

李蓉和文宣準備請出一位隱居的軍事奇才，不久後，一名重要證人失蹤，讓兩人陷入困境。