Just as Huang Xinzhai was about to investigate in depth, Xie Wenchao suddenly arrived and, under the guise of borrowing ink, suddenly opened the door and interrupted his plan.Afterwards, Xie Wenchao confided in private that he accidentally learned about the conspiracy between Huang Xinzhai and Gu Yizhong, which involved a mysterious figure named “Quanshui”-Ou Xinping.Zhou Zhifei was well aware of Huang Xinzhai's ability and did not have high hopes of capturing “Quanshui”, so he did not pay too much attention to this information.

In order to monitor and respond to Gu Yizhong's actions more effectively, Zhou Zhifei carefully planned and sent Xie Wenchao to mobilize elites from the Kunshan Secret Service Station. They quietly blended into the market and formed three teams to launch an all-weather, all-out close surveillance network on Gu Yizhong..

At the same time, “Quanshui” took advantage of Zhou Zhifei's absence to sneak into his mansion and secretly plot an escape strategy.When Zhou Zhifei returned, he saw that Yuqing was restrained and “Quanshui” had disappeared without a trace, leaving only an unopened letter.Upon seeing this, Yuqing was so anxious that she turned the letter into ashes and asked about Zhou Zhifei's past with “Quanshui”.Zhou Zhifei quickly made up a lie, saying that “Quanshui”'s real name was Liu Xiujuan and that he had been punished by Mr. Li's wife, in order to confuse Yuqing and make him believe it.

On the other side, Gu Yizhong was in a panic, knowing that time was running out and Xiao Junxia must be rescued immediately.He secretly contacted Haimo and told her to inform her cousin to leave Suzhou immediately.During dinner, although Haimo noticed something strange about Gu Yizhong, he did not forcefully question him.Gu Yizhong judged that the tunnel excavation was nearing completion, so he sent Gao Hu to explore the dungeon on the pretext of delivering food, but was declined by the warden.

Just as Gao Hu was reporting back, Gu Yizhong received an urgent call from Haimo and hurried back to the park.Xiao Ruotong is already waiting here, telling him that the tunnel is close to the prison, but he is faced with the problem of path selection.Gu Yizhong responded quickly, provided a stethoscope, and guided Xiao Ruotong and others to accurately locate his hiding place by monitoring the sounds in the wall and using Xiao Junxia's specific signal as a guide.

While Gu Yizhong and Xiao Ruotong were intensively planning, Haimo broke in and reported the approaching agents.Gu Yizhong decisively arranged for Haimo to escort Xiao Ruotong to evacuate, but Haimo insisted on staying to fight the enemy.Xie Wenchao led his team to break in. Without seeing Gu Yizhong, he severely interrogated the people present.Haimo was quick to wit, and used Mr. Gu's memorial tablet to fabricate stories about ghosts and gods, forcing the agents to retreat in awe.At this time, Gu Yizhong returned and secretly praised Haimo's wit.

At the same time, Xiao Ruotong went to Fugui's office with a stethoscope. Unexpectedly, he was confronted by workers holding guns after opening the door.It turned out that the workers were deceived by rumors and thought there was no treasure underground, but in fact they mistakenly pointed to Prison No. 90.When Xiao Ruotong revealed his identity, the workers were shocked and quickly changed their attitude. Not only did they release their wealth, they also actively participated in excavation work and showed full respect for the New Fourth Army.

After Xie Wenchao reported to Zhou Zhifei, Zhou Zhifei realized that he had been fooled by Gu Yizhong.In order to lure the enemy deeper, he ordered Xie Wenchao to spread false news that Xiao Junxia was about to be executed.Gu Yizhong cleverly used eggs to convey secret messages. He hid words in the eggshells, then restored them with glue, and Gao Hu sent them to prison with his meals.Jiang Boxian was keenly aware of this special “gift”.