Huang Xinzhai fled from Liuyuan in a hurry and ran into Zhou Zhifei. He accused Xie Wenchao of betrayal incoherently. Before he finished speaking, Zhou Zhifei pulled the trigger and ended his life. Later, Zhou Zhifei met Kondo Masao and claimed that Huang Xinzhai was actually a Chongqing spy. Jiang Boxian's escape was due to his collusion with Chongqing, and framed Huang Xinzhai's past crimes.
Kondo Masao looked at the gold bars, ship tickets and joint photos seized from Huang Xinzhai's home. Although the evidence was conclusive, he still had doubts in his heart. He then asked Zhou Zhifei about the past with Ou Xinping, and hoped that Zhou Zhifei could persuade Ou Xinping to serve the Japanese army. In the end, Kondo Masao entrusted the important task of interrogating Ou Xinping to Zhou Zhifei. Behind this move, there was a complicated mentality of trusting and using Zhou Zhifei.
When Gu Yizhong returned home, Haimo had already taken the lead and informed him of the arrest of his cousin-in-law with a sad expression. Haimo was filled with worries about her cousin's fate. She recalled the two fates her cousin had mentioned - to die on the battlefield or to die as an opponent. She knew that her cousin's trip would be dangerous, but she still begged Gu Yizhong to reach out with hope. Helping hand.
At the same time, Ou Xinping suffered inhuman torture in the interrogation room, but remained perseverant. Zhou Zhifei walked into the interrogation room, skillfully pushed his subordinates away, and hinted at the danger of Ou Xinping's current situation through subtle gestures. In order to win Ou Xinping's trust, he showed a notebook recording their past emotions. A leaf on that page became a witness to their shared memories.
After confirming that Ou Xinping understood what he meant, Zhou Zhifei started a carefully designed conversation. He deliberately loudly proposed that Ou Xinping surrender to confuse the eavesdroppers, but Ou Xinping responded to his loyalty with actions and angrily called him a "dog man". This drama successfully fooled Kondo Masao in the listening room into thinking that there was a real conflict between them.
During the interrogation, Zhou Zhifei cleverly used questions and gestures to guide Ou Xinping's answers, causing Kondo Masao to mistakenly believe that the news about Jiang Boxian in Liuyuan came from Huang Xinzhai, and believed that Huang Xinzhai was the only agent in No. 90. After the interrogation, Zhou Zhifei returned home with a heavy heart. Faced with Yuqing's inquiry, he had no intention of answering until Mr. Li's call came like a life-saving straw.
Mr. Li expressed dissatisfaction with Zhou Zhifei's failure to execute Jiang Boxian, and revealed that Kondo Masao had approved the application to execute Ou Xinping. Mr. Li analyzed that Kondo Masao’s move was intended to test the relationship between Zhou Zhifei and Ou Xinping, and it was also a test of Zhou Zhifei’s loyalty. Facing this cruel reality, Zhou Zhifei had mixed feelings in his heart. He knew that he must act more cautiously in order to protect his love and complete the task in this complicated struggle.
Gu Yizhong visited Ou Xinping with Guangzhou side dishes carefully prepared by Haimo. Ou Xinping knew at a glance that it was Hai Mo's feelings, and while eating, she told Gu Yizhong to cherish Hai Mo's true feelings. Gu Yizhong solemnly promised to take care of Haimo like a sister. Ou Xinping smiled bitterly and shook her head, saying that Gu Yizhong didn't understand women's hearts.
On the execution ground, Ou Xinping was about to die. Zhou Zhifei walked slowly forward with a gun, reciting a poem written for Ou Xinping. At the end of the poem, he confessed affectionately, saying that meeting Ou Xinping was a blessing in his life. The gunfire rang out, and Ou Xinping passed away with a smile on her face. She also expressed the same sentiment before her death, with a peaceful face.
Gu Yizhong walked towards Lao Huang heavily and confided the sad fact that Zhou Zhifei killed Qu Xinping. He was under great pressure and eager to return to the base immediately. After thinking deeply, Lao Huang understood and agreed to his request. However, when Haimo proposed to accompany him, Gu Yizhong hesitated. He was well aware of the strict censorship system in the base area and was unwilling to let Haimo endure unnecessary suffering, so he advised her to go to Shanghai first. But Haimo refused to comply and vowed to advance or retreat with Gu Yi.
At the same time, the outbreak of the Pearl Harbor incident in 1941 was like a bolt from the blue, making Kondo Masao feel unprecedented crisis and despair. He angrily swept the documents on the table to the floor, losing control of his emotions. At Station 90, Zhou Zhifei was holding a portrait and was deep in thought. It was a portrait of wealth that was seized from Huang Xinzhai's home. He was full of doubts, wondering why Huang Xinzhai painted this painting, and what secrets and stories were hidden behind this painting.