Urban Cops : KCSI returns with four rookie detectives, Chun Jung Myoung, Jo Jae Yun, Kim Min Jae, and Lee Tae Hwan. They join the Forensic Investigation Unit of the Seoul Metropolitan Police Agency. The Korean forensic investigation boasts its rapid and precise techniques which many other countries wish to learn. Detective Chun Jung Myoung with a very keen sense is a dark horse of the investigation unit. Detective Jo Jae Yun is optimistic and sociable. Detective Kim Min Jae is cautious all the time, and Detective Lee Tae Hwan has cheerful and agreeable characteristics. The four rookie detectives now work with other real police officers and share the pride and difficulties of their life as urban cops. 'Every contact leaves a trace.' They search for every little trace of crimes and track it to the end. Check out how they deal with urban crimes and carry out forensic investigations to solve cases!