On Lido Island, Nam Sang-won possessed Byon Sang-wook's body and showed the doctor his original human body, allowing the doctor to understand the ins and outs of the incident.In a flashback, the Doctor imprisons Minami Aihara and defiantly calls the trapped Yi Kyung, claiming that he is dead.The angry Minami Aihara escaped from his original body after evolving and possessed Shang Yu, becoming a key role.But he does not intend to kill the doctor now. Instead, he thanks him and decides to go to Chi Cheng, the leader of Li Island, together. The doctor recognizes Chi Cheng as the patient MH3.

Angry at Dr. Kim's experiment, Ji Sung tortured Sergeant Kim and his men and gave the injured Sergeant Kim a gun. Choi Yong-suk, Jong Hyun and Seo-jin were tied to the ceiling, and Sergeant Kim could only take one away.subordinates.Chi Sung expressed that he wanted to push special humans to the point where they could control themselves into monsters.However, Sergeant Kim points his gun at a monster hunter, causing Jong-hyun to be killed.At this time, Sergeant Kim pretended to kill Seo-jin, but actually shot his rope and ran away together.They escaped from the monsters on the ground. Nan Xiangyuan was bored and ordered the monster Ziyan to attack humans, and then left with other monsters transformed into humans.Shi Can arrives with a flamethrower and Zi Yan warns him, but he doesn't listen.A monster severely injured Ruizhen. Ziyan, who transformed into a monster, killed the monster. Shi Can ran to Ruizhen and Sergeant Jin.The doctor observed Ziyan and then joined Minami Aihara's team heading to the stadium.

The survivors at the stadium discovered that Seungwan was missing and worried that he had turned into a monster.Ye-seul is caught due to the blackout incident, and squad leader Ji tries to get her daughter Ye-seul to leave.During the plea, it was revealed that Team Leader Ji was not Ye-seul’s biological mother, and that her real mother died last year after turning into a monster.Ye-seul refused to leave, so Team Leader Chi dragged her to the basement, where her son's monster lived.Squad Leader Chi was surprised to see her monster appearance, and Ye Seul took the opportunity to knock her out.Sergeant Zhuo heard the commotion, but his men could not find the entrance to the basement.

Cha Hyun-soo entered Yi-kyung's consciousness and saw the monster Yi-kyung torturing the human Yi-kyung.Chanrong was worried about Eunyou and decided to go back to find her, when Ha Ni appeared.Ha Ni and Chan Rong met Eun You who was waiting in front of the pit.A monster is lured into the pit by Yi-kyung's screams.Chanyoung and Eunyou jumped down to protect Cha Hyunsu and Yi Kyung.The battle was difficult and the rope caught fire. Chanrong asked Ha Ni to rescue Eunyou and fight alone.Due to lack of ammunition and gasoline, Chanrong gave up, but Cha Xianxiu awakened Yi Jing, killed the monster and pulled Chanrong and Yi Jing up.Yi-kyung's burns recover, but her eyes become human-like.The camera switched to Yi Jing's daughter, the mysterious girl heading to the stadium.