In a desperate situation, Che Zhenyu witnessed the tragic death of her daughter, and a scream broke through the otherwise dead night.Although Li Enhyuk escaped by chance, the fear in his heart has not dissipated. He closed the door tightly and used the iron cabinet as the last line of defense to resist the invasion of the long-tongued monster outside.Faced with such a situation, Yoon Ji-soo and Jung Jae-hyun decided to go to the safe area on the first floor to explore for hope. Although Han Dou-sik was suspicious of their plan, Yoon Ji-soo's words revealed a glimmer of hope: “Even the deepest darkness,It will also disappear with the faintest light.”

Cha Xianxiu was moved by these words, and he decided to follow Yoon Jixiu and Zheng Zaixian to the first floor to challenge the unknown.He promised Kim Young-soo that he would return safely.At the same time, survivors Park Yoo Ri and An Ji Sub also heard Lee Eun Hyuk’s previous broadcast, and they decided to go to the first floor to meet everyone.

However, the appearance of the spider monster makes the already tense situation even more dangerous.Although Xu Yijing successfully escaped the spider monster, she still faced unknown dangers.When the national alarm sounded, the survivors learned from the TV station that the country had entered a state of emergency martial law. The military had taken over public security and justice, and confirmed the phenomenon of citizens being infected and transformed into unknown organisms.The news left everyone feeling hopeless, but the military said it had the ability to solve the situation, giving survivors a glimmer of hope.

Cha Xianxiu was attacked by a monster in the corridor and fell to the first floor and bled profusely.Surprisingly, however, he was not fatally injured.This scene made the survivors on the first floor fear and doubt him, because he seemed to have become a monster.Lee Eun Hyuk initiated a vote to decide whether Cha Hyun Soo should stay or go, but the result was a tie.At this time, Kim Seok-hyeon was bleeding from his mouth and nose because of emotion. When he woke up, he found that he was being held in an isolation room with Cha Hyun-soo.

In the isolation room, Ahn Sun-young delivered meals to the weak Seo Yi-kyung and told her what happened during this period.Yin Jixiu recalled her past while comforting Cha Zhenyu.After Choi Young-jae was attacked by Byun Sang-wook, he unexpectedly discovered that he might also have become a monster.He was detained in an isolation room with Cha Xianxiu and others. He asked Cha Xianxiu how to become a monster, which frightened Cha Xianxiu.