Episode list

Young-joo breaks up with her boyfriend, Jae-yoon. He accepts the breakup with a heartfelt voice message. Upon hearing this, Young-joo heads to his workplace, but she encounters an unexpected incident on her way there.

Jae-yoon and In-ho find a plane crashing into the heart of Seoul. Young-joo and Jin-wook confront zombies and team up with Tae-shik. Together, they begin their fight for survival.

Jae-yoon, In-ho, Soo-jeong, and Chef Jung return to the air defense unit. However, even the base they thought was safe begins to face the threat of zombies. Young-joo decides to go alone to Tower 77 A, where Jae-yoon is located.

Jae-yoon and Young-joo reminisce about their happy past. Jae-yoon and his squad mourn the loss of their comrades. Young-joo's group encounters Tripeater, who has been bitten by a zombie but has not yet turned.

A military sergeant must guide his platoon to safety after their base becomes overrun with zombies, while another group of survivors faces danger at the facility's entrance.

Young-joo is left by herself at the Express Bus Terminal Station, but a stroke of luck leads her to a metro staff office, where she gathers supplies to battle the zombies. Meanwhile, Jae-yoon's group reaches Eden Hotel, where they run into Arron Park, who has survived there alone. But the group gets split up by an unexpected attack by the zombies, throwing them into separate hotel rooms.

On her way to Suseo Station, Young-joo meets a special person who helps her. She relentlessly fights the zombies alone on her way to her boyfriend. Meanwhile, Jae-yoon and the squad reach the 35th floor through the ducts.

Jae-yoon escapes the A Tower first and saves others with a brilliant idea. But they must endure another goodbye. In the meantime, Young-joo runs into people who are even more brutal than zombies.