In 2029, an elite police squad combats an anti-reunification terrorist group while another enemy lurks nearby.
Deliveryman Jong-su is out on a job when he runs into Hae-mi, a girl who once lived in his neighborhood. She asks if he'd mind looking after her cat while she's away on a trip to Africa. On her return, she introduces to Jong-su an enigmatic young man named Ben, who she met during her trip. One day Ben tells Jong-su about his most unusual hobby.
A father goes all out to clear his daughter from any wrong doing in the murder of his fiancée. When all evidence points to her, he takes matters into to his own hands to save his daughter and outwit the judiciary system.
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.