During the Japanese colonial rule of Korea, while people are in despair, Jae-ho tries to raise morale by winning cycle championship. Bok-dong, who started cycling with Jae-ho just to make a forture, becomes a symbol of hope for Koreans by defeating Japanese cyclists.
An imprisoned ex-police inspector discovers that the entire penitentiary is controlled by an inmate running a crime syndicate and becomes part of the crime empire.
Nam-bok, a middle-aged South Korean farmer is conscripted and assigned a mission to deliver a classified military document that may decide the fate of the war. After losing it while under attack from the enemy, he then faces a teenage North Korean soldier named Yeong-gwang who happens to acquire the secret document on his way to the North.
Tae-hun causes trouble for the his unit with his antics. He does not take much seriously until a dogfight leaves a pilot dead and another missing. Tae-hun and the other members of his unit launch a rescue mission to prevent a war from breaking out.
40-year-old Sociology professor Hye-jung falls for a 21-year-old Usang, a male student who helps her project research on women's extramarital affair. Their prohibited love and secrets are watched and told by two secretive observers. They are her copy machine and his digital camera.
Bo-ra and her brother, Tae-hun, lose their grandmother they have been living with since their parents’ death. But soon after he gets shocking news that Bo-ra has been kidnapped. The kidnappers plan to use Bo-ra in an online porno and threaten to post it on the web by 10 pm on the following day. Tae-hun embarks on an urgent mission to find his sister and get her back from the kidnappers!
