I am anxious for the outline of the story of Jiang Gan's recruit.

Cao Cao led his troops eastward. After receiving Cao Cao's letter of challenge, Zhou Yu, the governor of Wu Dong, destroyed books and beheaded envoys to express his determination to resist. This led to the battle between Cao Cao and Wu Dong in Sanjiangkou. Zhou Yu won the battle, but he was still able to be cautious, conduct investigation and study, and keep an eye on Cao Ying all night. Zhou Yu found that the commanders of Cao Cao's water army were Cai Mao and Zhang Yun, who had surrendered to Cao Cao under Liu Biao. These two men are "wonderful flowers in the water army", which is the main obstacle for Wu Dong to break Cao Cao. Zhou Yu had the plan of "designing to get rid of these two people first". When Cao Cao was worried about how to break Wu Dong, Cao Ying's adjutant Jiang Gan came out to introduce himself.

He said he was willing to go to Soochow to persuade Zhou Yu to surrender and promised to complete the task. Zhou Yu heard that Jiang Gan, an old classmate, was visiting, and decided to use it to practice double agents. Zhou Yuxian set the rule of "friendship and friendship" at the British banquet at the conference, not mentioning "military affairs", and sealed Jiang Gan's mouth. Furthermore, Zhou Yu showed Jiang Gan the strength of "armed to the teeth, well-fed and well-fed", showing off his position as "the master of friends" and gaining trust and reuse. Cut off Jiang Gan's idea of health. In the evening, Zhou Yu and Jiang Gan "slept on their feet", pretending to be drunk and sleeping soundly, induced Jiang Gan to steal a forged letter from Cai Mao and Zhang Yun to surrender to Soochow, and arranged for Jiang Gan to watch the plot of "someone came to Jiangbei", which convinced Jiang Gan. Jiang Gan hasn't finished the mission of saying that Zhou Yu has fallen, but thanks to this important "intelligence", he sneaked back to Cao Cao overnight to report the results. When Cao Cao finished reading it, he was furious and ordered Cai to be cut. Zhou Yu's double agent finally succeeded.