Jang Hyuk as Kang Ji-goo, Soo Ae as Kim In-hae, Park Min-ha as Kim Mi-reu, Yoo Hae-jin as Bae Kyung-ub, Ma Dong-seok as Jeon Gook-hwan, Lee Hee-joon as Byung-ki, Kim Ki-hyun as the South Korean prime minister, Cha In-pyo as the South Korean president, Lee Sang-yeob as Byeong-woo and others
.: Plot :.
A group of immigrants are smuggled inside a shipping container with their final destination being South Korea. Inside the container, one of the immigrants is a carrier for a lethal and highly contagious virus. Byung-Ki (Lee Hee-Joon) and Byoung-Woo (Lee Sang-Yeob) drive to the shipping container to release the immigrants. They soon discover that all of the immigrants are dead, except for one man. Soon, thousands of people become infected every hour by the deadly virus, which kills within 36 hours of infection. The entire suburb of Bundang is quarantined by the government in a desperate attempt to stop the virus from spreading further. Firefighter Kang Ji-Koo (Jang Hyuk) is one of those quarantined. Dr. Kim In-Hae (Soo-Ae) is one of the first responders to the outbreak of the virus. The outbreak becomes even more personal once she suspects her own daughter (Park Min-Ha) is infected by the virus. Firefighter Kang Ji-Koo and Dr. Kim In-Hae frantically work together in a race against time to find a cure.
Infected through the respiratory system, there is a new kind of disease that kills in 36 hours once infected. The people of the city struggle to survive this. The worst epidemic ever seen is sweeping through Bundang, the suburb of Seoul. After smuggling illegal immigrants into the country, Byung-woo dies from an unknown virus. Soon after that, the same symptoms are plaguing scores of residents in Bundang.
