While investigating a terroristic threat that goes viral online, Korean authorities discover that a suspect has recently boarded an international flight bound for the United States. When a healthy passenger on the same flight suddenly dies a gruesome death of unknown cause, panic erupts both in-flight and on the ground. With steadily decreasing fuel and international refusals to offer aid, the captain and crew will be forced to take unprecedented emergency measures in an attempt to save the lives of their passengers.

In 1991 war-torn Somalia the personnel and the families of both the South Korean and the North Korean embassies have the same goal: to escape from Mogadishu.

Busan, South Korea, 1970s. Lee Doo-sam is a small-time smuggler. After helping a drug gang to smuggle meth, he falls into the dark crime world. Quick-witted and full of ambition, he eventually takes over the drug underworld and starts to lead a double life: a good community leader during the day but an infamous drug lord during the night.

Gon, a Korean hitman bred in the United States where he works for a Chinese triad, usually flawless in taking out his targets, makes a terrible mistake in fulfilling a mission. Swamped by feelings of regret, Gon no longer wants to be a hitman, but, in order to tie up loose ends, his boss forces him to do another job in Korea.