فصل 1

Inside Lee Byeong-chan's science lab, a student incurs a seemingly harmless bite. Shortly after, a fast-spreading outbreak soaks the school in blood.

بازیگران مهمان: 안시하، 김정연، 윤병희، 신재휘

The infected multiply in droves. Scrambling for their lives, Nam On-jo and Lee Cheong-san find safety with others inside a classroom — but not for long.

بازیگران مهمان: 김정연، 채동현، 윤병희، 정이서

When one of the group is scratched while fighting a zombie, Lee Na-yeon demands they kick him out. Outside, the virus swallows up the city.

بازیگران مهمان: 동현배، Ham Seong-min، 이채은، 김보윤

In need of a cellphone, two students take a risky journey to the teachers' office. Byeong-chan passes on critical information to Detective Song Jae-ik.

بازیگران مهمان: 신재휘، 정이서، 동현배، Ham Seong-min

Martial law is imposed on the city. When Cheong-san is separated from the rest of the group, On-jo leads a mission to use a drone to locate him.

بازیگران مهمان: Ham Seong-min، 김주아، 이채은، 강문경

The group clears a path to Cheong-san using sound to draw away zombies, but a new type of threat surfaces. Nam So-ju breaks out of the quarantine camp.

بازیگران مهمان: 김보윤، 은여진، 안승균، 손상연

To make it out of the music room and onto the roof, the students put into action their most perilous plan yet. Elsewhere, Jae-ik comes across a setback.

بازیگران مهمان: 김보윤، 은여진، 안승균، 손상연

Jae-ik and his crew run into a student from the school. Na-yeon works up the courage to face her peers. The group shares confessions around a fire.

بازیگران مهمان: 김보윤، 은여진، 안승균، 손상연

A disturbance at the camp shifts the military's understanding of the virus. A thunderstorm provides cover as the group agrees to keep on moving.

بازیگران مهمان: 김보윤، 은여진، 안승균، 손상연

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.

بازیگران مهمان: 김보윤، 은여진، 안승균، 손상연

Though a surprise protector provides the group safe passage to their next stop, Yoon Gwi-nam is not far behind. The military makes a grave decision.

بازیگران مهمان: 김보윤، 손상연، 하승리، 이은샘

The students make it to the quarantine camp, each of them weighed down by tragic loss. Months later, they hang on to hope for a survivor.

بازیگران مهمان: 김보윤، 손상연، 오혜수، 하승리