
S01E01 Episode 1
Kim Hyeon-Jun and Jin Sa-Woo, fall for the same woman who has chosen the both of them to be new members of a secret anti-terrorist organization.
A mysterious man has been trying to track down Hyun-Jun because of a USB drive that he received from the late Hong Seung Ryong. It turns out that the USB has information on a mysterious terrorist organization, called IRIS.
Two friends, members of the South Korean military, are recruited by a secret black ops agency.