Duan Tianya (played by Li Yapeng), Gui Hai Yidao (played by Huo Jianhua), Shangguan Haitang (played by Ye Xuan), Cheng Shifei (played by Guo Jinan) are the four secret agents of Hulong Villa. Each of them has unique skills that are unmatched by the people in the arena. They serve the Godly Marquis Zhu Wushi (played by Liu Songren). At this time, because the Emperor Zhengde (played by Deng Chao) was stupid and the political situation was chaotic, the East Factory took advantage of the chaos to control the government and persecute the loyal and good. Cao Zhengchun (played by Li Jianyi), the eunuch chief of the East Factory, who was in power, bullied people and was always against Hulong Villa. When the four were deeply involved in the love and life experience of the children, the current situation deteriorated sharply. One murder after another pointed directly to Hulong Villa. The invisible conspiracy shrouded Hulong Villa. Shen Hou was imprisoned because of being framed by the traitor. At this time, Shen Hou took the opportunity to set up a fake death, and with the cooperation of the four secret agents, Cao Zhengchun and his gang were eradicated. The four people who originally thought that the conspiracy was over now discovered that the emperor's stupidity was actually a disguise, and the biggest conspirator around him was the Divine Marquis who raised them but has been eyeing the throne for more than 20 years!