Set in the late 15th century during the reign of King Yeonsan, two male street clowns and tightrope walkers, Jangsaeng and Gong-gil, are part of an entertainer troupe. Their manager prostitutes the beautiful Gong-gil to rich customers, and Jangsaeng is sickened by this practice. After Gong-gil kills the manager in defense of Jangsaeng, the pair flee to Seoul, where they form a new group with three other street performers.

Six months ago the son of the married couple drowned. The couple, together with the teenager that their son saved, begin a journey to cope with the loss.

A young boy learns Tae Kwon Do, not only to defeat the gangsters threatening his family, but also to defeat the man who killed his father.

Miss Jin, a female detective, meets the head of a human trafficking organization in an undercover plan to destroy it. But she falls into their trap and gets caught. Jin's younger brother and two young men who both have unrequited love for Jin try to save her, but they fail due to the appearance of The Twin Light Brothersrothers. However, Detective Kim defeats The Twin Light Brothers and rescues Jin from the villain's lair.

The plot concerns Guard Point 506, where an entire squad of soldiers have been killed in mysterious circumstances, bar one survivor who's in a coma. Military Investigators are dispatched to the base, and discover they're dealing with a virus that turns humans into ravenous flesh-eating killers!