With the background of the high-rise building air defense force in Seoul, it tells the story of the soldier Jae Yun and his girlfriend Young-joo, who had just received the breakup notice, fought a desperate battle with the zombie and ran towards each other.
Episode 1
Jae-yoon, who serves in the air defense force, breaks up after an argument with his girlfriend Young-joo, who has just entered society.
Young-joo confirmed Jae-yun's sincerity in a belated manner, but encountered an unexpected incident when she went to Jae-yun's troops.
Episode 2
Jae-yoon and In-ho, who were running errands under the air defense forces, encountered a zombie outbreak at the hotel, while Young-joo and Jin-wook encountered a zombie outbreak at the Gangnam Road.
Episode 3
At Yun and Inho return to the army with Soo-jung and Chef Jung of the Eden Hotel.
But the unit is not safe either.Youngjoo, Jinxue and Tae-sik head to Tower 77A of Jae-yun's unit.
Episode 4
The isolated squad members of the air defense forces were happy to hear the news of supply helicopters.
The lord and his group met a third-grade student who was bitten by a zombie without any change, and got unexpected secrets of survival from him.
Episode 5
When the supply helicopter was unable to land, the team decided to get off the tower for survival.Meanwhile, Youngjoo, Jinxue, Tae-sik and Sansoo-soo cross the Gangnam and reach the entrance to Tower 77 A.
Episode 6
Now, Yeongju is alone again, she discovers and equips some items needed to survive.
Jae Yun and his team received help from an unexpected person and found a shortcut to safely get down the tower.
Episode 7
In a subway station filled with zombies, Yeong-ju has to fight the zombies alone.Jae Yun and his team descended through the ventilation shaft, but were trapped on the 35th floor.
Episode 8
Lee Caiyun and Kang Yingzhu finally meet again, and the two decide not to separate and fight the zombie threat together.However, the fall of Shuixi Station and the origin of the virus have not been resolved, and the development of the antidote and the foreshadowing of the second season are mentioned.
