During a perilous 24-hour mission on the moon, space explorers try to retrieve samples from an abandoned research facility steeped in classified secrets.
A son to a high-ranked official in North Korea commits a series of murders going across the countries around the world. The movie depicts the following events as South Korea, North Korea and Interpol start chasing down after him.
Seo-jin is a widower still grieving his wife's death. Then he receives the news that his long-lost younger sister, Yoo-jin, who went missing 25 years ago, has turned up. Unlike the rest of his family, who welcome her into their arms, Seo-jin feels that Yoo-jin is a stranger.
