The plot of the fourth episode of the TV series Ebola Frontline: Zheng Shupeng investigates the source of the virus and meets He Huan and Brahan. In order to fulfill Lao Gai’s last wish and save Kabalia, Zheng Shupeng asked to stay in Kabalia. here. The test results of the medical team have now come out. Everyone’s test results are negative and they can go home. Wang Wenqian also passed the isolation period and successfully passed the risk period. Zheng Shupeng went to Sangyi Village where the Ebola virus was discovered, and the government officially hired Zheng Shupeng. Just one day ago, reactionaries held a carnival in Sangyi Village. The chief of staff was sitting on a high platform drinking wine, and then followed a white man into the woods. He asked the white man what he wanted, and then someone hid behind the woods and filmed the two of them. Kabalia's first patient was Bed No. 18. He was the first patient released by the Chief of Staff, so he was anxious to seal off all information. The white men threatened that if international organizations knew about this matter, they would destroy Blackstone Village. At this moment of celebration, a gun was fired, and the chief of staff shot the white man to death while taking advantage of the sound of gunfire. Zheng Shupeng, a foreign medical expert hired by Mr. President, came to Sangyi Village to conduct an investigation. When he was here, he met Xie Yunhu and others. They hoped that Zheng Shupeng could return safely. After everyone's advice, Zheng Shupeng drove away happily. No one knows what the outcome of this escape will be. They can only pray in their hearts for Zheng Shupeng's safety. The president praised Zheng Shupeng in his speech and hoped that more friendly international organizations could participate. Zheng Shupeng finally came to Sangyi Village, which was full of poor people. He Huan accompanied the doctor and successfully established a good isolation area, which could also take good care of these people. The doctor said that regardless of whether He Huan is a reporter or a doctor, he should thank her properly. Someone got sick and started running away, eventually falling in front of Zheng Shupeng. Seeing this situation, Zheng Shupeng was very anxious. Unexpectedly, Braham saw Zheng Shupeng here, and the two greeted him quickly. Zheng Shupeng also saw He Huan here and saw their medical illusion, which made him very worried. The protection measures here are very imperfect and can be very dangerous. Zheng Shupeng also moved the supplies he brought, and then talked about the work of eighteen beds of patients. He also came here to check for Ebola virus. Later, a younger brother found a doctor and hoped that he could check it out. Eventually Zheng Shupeng and He Huan ran there, and they began to treat the patient. The patient's current condition is relatively normal, and she will give birth soon. Zheng Shupeng began to ask Dr. Brahan. Zheng Shupeng is not an obstetrician and gynecologist, so he is a little unable to do this. If there is no other way at the moment, he can only bite the bullet. Zheng Shupeng and He Huan were busy inside, and the chief of staff led people here to conduct a search. After checking for a while, I didn't find what I wanted to find, and then asked everyone to continue searching. Zheng Shupeng and He Huan were still doing their homework of delivering the baby. They asked the mother of the child to work hard, and finally the child was born as a boy. Soon Zheng Shupeng asked He Huan to do oxygen inhalation, and then he needed to be supported and massaged to prevent excessive bleeding. In the end, the child's cry attracted the father to go in, and then the chief of staff also discovered this place. He asked Zheng Shupeng to stop the rescue, but Zheng Shupeng refused. He would not abandon the rescue patient, so the chief consultant fired a shot to scare him.