Sok-woo, a father with not much time for his daughter, Soo-ahn, are boarding the KTX, a fast train that shall bring them from Seoul to Busan. But during their journey, the apocalypse begins, and most of the earth's population become flesh craving zombies. While the KTX is shooting towards Busan, the passenger's fight for their families and lives against the zombies - and each other. Written by Anonymus

In the 1970s, during the height of political corruption, Gangnam, the southern part of Seoul is starting to be transformed into a developed area. Childhood friends Jong-dae and Yong-ki struggle to get by, until their shanty homes are demolished by local thugs. Desperate for cash, they get involved in violent political clashes, and are separated during one of the skirmishes. Three years later, Jong-dae lives as an honest man with former gang leader Kil-su. Meanwhile, Yong-ki has joined Seoul's most powerful criminal organization, the Myeongdong-pa. As a gangster, Yong-ki is entangled in a high-stakes battle over land in Gangnam, all in the name of putting together secret presidential election funds that drive up the value of the city. As the gangs fight over the rights to various plots of land, Yong-ki is captured and interrogated by a rival gang. The southern part of Stransformed into a developed area. Written by tsheringtashi75