Set 3 years after the death of NIS agent Kim Hyeon-Jun by terrorist group IRIS. At a warehouse that sells arms illegally, NSS team leader Joon-Han sees Detective Yoo-Gun and asks him to work with him as an NSS agent.

• Iris 2
• Lee Bum Soo
• Yoon Doo Joon
• Im Soo Hyang
• Oh Yeon Soo
• Jang Hyuk
• Kim Tae Hoon
• Pyo Min Soo
• Lee Joon
• Lee Da Hae