"All Of Us Are Dead"|Season 1|Episode 3

In the broadcasting room, a zombie appears outside the window, causing Gyeong-su to be scratched on his wrist. Na-yeon accuses him of being infected and they isolate him for their safety. After they isolate Gyeong-su in a corner room, Na-yeon pretends to apologise but secretly puts zombie blood on a handkerchief and applies it to his wound, causing Gyeong-su to transform and attack the others, who throw him out the window. As the students condemn Na-yeon for murdering Gyeong-su, Na-yeon walks out of the room, with a concerned Ms. Park quickly following her. Gwi-nam alone escapes from the kitchen after he pushes the others to the zombies. Hyosan's situation makes the government impose martial law and they begin to evacuate survivors. Cheong-san's mother goes to the school, concerned for Cheong-san's safety. On-jo's firefighter father Nam So-ju and his team are hiding in a government facility with Hyosan's Assemblywoman Park Eun-hee and her associates. Elsewhere, student Park Hee-su gives birth to a baby in a playground public bathroom stall and initially abandons it before returning to reclaim it after narrowly avoiding death from a car collision.