A teenage girl is captured by a giant mutated squid-like creature that appears from Seoul's Han River after toxic waste was dumped in it, prompting her family into a frantic search for her.
When an illicit arms deal goes bad, North Korean spy Pyo Jong-seong finds himself targeted not just by the South Koreans but also his own bosses.
Ha Yoon-ju becomes the newest member of a unit within the Korean Police Forces Special Crime Department that specializes in surveillance activities on high-profile criminals. She teams up with Hwang Sang-jun, the veteran leader of the unit, and tries to track down James who is the cold-hearted leader of an armed criminal organization.
Yoon-Jung accidentally calls a stranger, instead of her boyfriend, and has phone sex with the unknown man. When Yoon-Jung's relationship with her boyfriend turns sour, Yoon-Jung meets Hyun-Seung, the stranger she had phone sex with.
A wealthy oil tycoon decides to steal oil from a pipeline running between Honam and Seoul-Busan motorway. To carry out this heist, he enlists the help of an experienced drilling engineer and his team.
