Jae-yoon, who is drafted late into the military, and his girlfriend Young-joo break up over misunderstandings via phone. But a zombie attack shakes the world. A national emergency has been declared in the country, a plane crashes into the city center, and Jae-yoon and his unit are trapped on top of a skyscraper in Seoul. Young-joo ventures into the zombie-infested streets to find him. Can their love survive the apocalypse?
