According to the accounts of the rebel underground party, the Kuomintang has information on many Communists such as Cai Zeju and Su Qingwu.Chen Lihuang quickly led people to search Tongji University, but did not find any useful information, so he sent his men to smash the archives to find Cai Zechuan's name.

On the other hand, Tao Ge came to Su Qingwu alone and tried to trick Su Qingwu but was found out, so he simply asked her to go with him to see Huang Jibi.On the other side, everyone in the training class was told that someone in the party had rebelled and must evacuate Shanghai immediately.Su Qingwu stabbed Tao Ge and hurriedly came to inform everyone that he had been exposed. Cai Zeju gave up the idea of ​​leaving a letter to his family and embarked on the journey with Xu Zhengye, Qu Xiangdong and Song Xiaobo.

After everyone left, Su Qingwu stayed behind to destroy documents, smash the assembled radio stations, and clash with a group of plainclothes agents. Until the last moment, he ended his life with a bullet. He would rather die than fall into the hands of the Kuomintang.In the hands of special agents, he died heroically.

Lin Chenhan brought the news of Cai Zedang's disappearance back to Ningde and comforted Cai's mother and Xue Pinxuan. Even though the Cai family had some foundation in Ningde, the strength of the Kuomintang should not be underestimated. He was protecting his family by not running home now.At this moment, Dane had come to Shanghai from Nanjing specifically to bring Chen Lihuang and Huang Jibi the news that Cai Zejuan and others were hiding in Zhenru, and invited Huang Jibi to go with them to arrest him.

Summer also brought two pieces of news to Cai Zejuan and the others. The good news was that under the leadership of Mao Zedong and Zhu De, the Jiangxi and Fujian Soviet base areas had won the second anti-encirclement and suppression campaign, further consolidating the Jiangxi and Fujian Soviet base areas.The bad news is that due to the failure of this “encirclement and suppression” campaign, the Kuomintang has now completely surrounded the Hubei-Henan-Anhui Soviet Area, resulting in a very critical situation. However, they do not have a radio station and cannot transmit the news in time. They urgently need cadres who know radio to help establish a radio station.At this time, Cai Zechuo and others are needed to rush to the front line.

Naturally, everyone was obliged to do so. Time was tight and the task was heavy. They urgently recited the call signs and clear code books for the organization's internal communications. Under the cover of Xia Tian and others, they escaped the search of the Kuomintang agents, took a small boat to Kunshan, and checked into the Koi Hotel.The proprietress is the person in charge of the liaison station here. She was ordered to convey the instructions from her superiors and made up new identities based on the characteristics of the four young people.

The four young men had just changed their clothes when the landlady came over to inform them of the sudden change in the situation. Originally, the organization arranged for them to take a train from Kunshan to Nanjing. However, it was reported that a traitor had been betrayed and a transportation station was destroyed by the Kuomintang Investigation Section. The original plan had to be changed.For the second route, you need to linger in the local area for three days before setting off.

At the same time, Chen Lihuang learned about the escort of Cai Zejuan and others. Although he did not know the specific appearance and identity of the four young people, it was enough to show that the four people's positions were not low.Three days later, Kuomintang agents set up sentries at various locations for interrogation. In order to allow the four people to leave smoothly, Ah Liu took the opportunity to create chaos, and even to cover up Cai Zejuan's death from a bullet, causing Cai Zejuan to fall into self-blame.

On the train bound for the Jiangxi and Fujian Soviet areas, Cai Zejuan cried sadly. The old traffic officer enlightened Cai Wei with his own experience. Even though the sacrifice of his eldest son made him very sad, if the world is unfair, generations after generations will continue to bleed and even sacrifice for it.life.Hearing what the old traffic officer said, Cai Zejuan was shocked.

Tao Ge survived by luck and was awarded the rank of captain of the Kuomintang as a blessing in disguise. Zhou Mo resolutely stayed in Shanghai to take care of Tao Ge.At the same time, the old traffic officer and his son handed over Cai Zejuan and the others to the local underground party overnight. However, Cai Zejuan was in a bad mood because of Ah Liu's death. He was worried about whether he was right to follow the organization all at once, and everyone also started to dispute whether the sacrifice was worth it.Xu Zhengye told Cai Zeju that the comrades participating in the revolution were all throwing their lives and blood. They were shouldering the important task of building a radio station that was urgently needed ahead of them. They could only set up the radio station one day earlier to avoid more sacrifices.

Finally, with the persuasion of others, Cai Zejiu had the courage to face death and no longer retreat.Early the next morning, the four of them were divided into two groups according to the coded intelligence instructions from their superiors. Cai Zejuan and Xu Zhengye took the Huai'an line, and Qu Xiangdong and Song Xiaobo took the Bengbu line, and agreed to meet in the new episode.