A terrorist group known as "Athena" and led by evil mastermind Son Hyuk threatens South Korea and the world. It is now up to special agent Lee Jung Woo of the National Security Agency to foil their terrifying conspiracy.

The background is the wilderness of 1930s Manchuria. The Bad (a hitman) is hired to acquire a treasure map from a Japanese official traveling on a train, The Weird (a thief) steals the map from the Japanese official when he robs him on the train. The Bad just after manages to stop the train and a slaughter of Japanese and Manchurian guards ensues. The Good (a Bounty hunter) appears on the scene with his shotgun in hand and tries to kill The Bad. Meanwhile The Weird manages to escape to the Ghost Market, to figure the map out and escape from his pursuers. In this unpredictable, escalating battle for the map with the Japanese Army, and Manchurian bandits also after the map, who will survive and claim the supposed treasure?

The film focuses on the stories about four relationships and their trials, pains, heartaches, and subsequent separations. The plot lines eventually connect in some way, but they remain unrelated for the most part.

The passionate fire fighter, 30 years old, tries to propose to his lover but every time he misses the chance. In the meantime, she becomes anxious whenever she hears a siren.

Suk-hyeon intends to break up with her jobless lover, Ha-seok, and he begins an agency that helps other lovers to break up.

Juyeong is mad at her son's troubles in school, but she realizes that she has little time to spend with him.

Su-eun, with a hearing impairment and a burn on her face, falls in her first love but she doesn't have the courage to come out in his presence.

A heartbreaking yet hopeful tale of a man who never stops loving his wife, even as she gradually loses her memory to Alzheimer's disease.

In the 14th century, a failed Korean political envoy attempts to rescue a Ming princess from Mongols in an effort to save Korea's relationship with China.