After unwittingly stealing money from a cartel, a cash-strapped professor finds the only way to save his broken family is by working as a drug courier.

Days after her friends disappear during a trip to a mysterious cave, a girl is approached by a grown man claiming to be one of her missing pals.

Set in the future, South and North Korea agree to set up a unified government. They have prepared for the unification for the past 7 years. Meanwhile, demonstrators, supporting and opposing the unification, become more fierce. A group against the unification commit terrorist acts. A special police force is formed in response.