- An undercover investigative squad of homicide detectives is formed, and their extra-legal methods include wiretapping, communications monitoring and deep-cover infiltration. Among its members are Cha Gun-woo, a former ROKN SEAL and KNP SWAT member who pursues his targets doggedly and is secretly on a revenge mission after his girlfriend's death; principled and perceptive team leader Jang Moo-won, who was granted permission to form the squad and will personally face the consequences if it fails; Yoo Min-joo, who's skilled in disguise, psychoanalysis and martial arts; and sly Choi Tae-pyung, who gets information from shady back-alley connections.
- DirectorKim Jung-min
- WriterKang Hyun-sung
- Main castKim Bum, Park Sung-woong
- Channel info.tvN
- Broadcasted2015.06.16 ~ 2015.08.04 (16 episodes)