A drama about Cha Yeon-ho, a reasonable individualist from KAIST, and Min So-hee, a traffic investigation ace with cool judgment and warm sensitivity at the Traffic Crime Investigation (TCI).
When a local Inn Keeper’s daughter disappears Cha Yeon-ho reaches out for help. The old TCI gang takes vacation to assist him. The team is finally promoted with exception of Chief Jeong who had rendered his resignation. When Chief Justice Shin So-jung (Park Ji-young) is promoted to Director National Office of Investigation, she seeks out Chief Jeong to reestablish the TCI.
