The auditorium quickly becomes a trap for the two newly united teams of survivors. Byeong-chan's video logs reveal a drastic solution to the crisis.
Quest roles:
Ahn Seung-gyun(Oh Joon-yeong), Jo Dal-hwan(Jo Dal-ho), Lee Eun-saem(Park Mi-jin), Bae Hae-Sun(Park Eun-hee), Ha Seung-Ri(Jang Ha-ri), Son Sang-Yeon(Jang Wu-jin), Kim Bo-yoon(Seo Hyo-ryung), Jin Ho-eun(Jung Min-jae), Lim Jae-hyeok(Yang Dae-su), Kim Jin-young(Kim Ji-min), Oh Hye-soo(Min Eun-ji), Lee Ji-hyeon(Lee Cheong-san's mother), Yang Han-yeol(Yoo Joon-sung), Kim Jong-tae(Jin Seon-mu)