Jae-yoon, a late military enlistee, and his girlfriend, Young-joo, break up over the phone over growing misunderstandings. But a zombie outbreak rocks the world. A national emergency is declared, a plane crashes in the city center, and Jae-yoon and his unit get trapped on top of a Seoul skyscraper. Young-joo risks the zombie-filled streets to find him. Can their love survive the apocalypse?

After completing his required decade of military service and being honored as a hero, a North Korean sergeant makes a sudden shocking attempt to defect to the South, risking life and limb for the chance to finally determine his own destiny.

Hyeon-gyu, who was injured and fell into an administrative soldier while learning the motion of "spinning gun" at the honor guard, wants to become a member of the honor guard again and run the event.

Wootae, who is determined to divorce, meets his estranged wife Jiyeon. Soon, the sound of cicadas begins to find its way into his ears.