"IRIS 2" Jang Hyuk takes revenge on David McInnis.

March 21, the 12th episode of the KBS drama "IRIS 2" featured Jung Yoo Gun (Jang Hyuk) taking revenge against Ray (David McInnis) just as he warned previously.

In the previous episode, Ray requests Baek San (Kim Young Chul) from NSS for a trade with Jung Yoo Gun. Thinking that NSS will decline the offer, Ray tells him that IRIS agents will get information about the atomic bombs and attack Seoul and Pyongyang. Jung Yoo Gun had replied, "It's not going to go as you planned because you're going to die in my hands first."

During the trade, Jung Yoo Gun tells Ray, "Don't forget me" and walks over to NSS. The NSS agents arrest him right away and put him inside of a car.

Right then, Baek San jumps into the river as they had planned and Ji Soo Yeon (Lee Da Hae) begins to shoot at the IRIS agents. Jung Yoo Gun takes a gun from other agents and escapes the car to begin shooting at Ray.

One by one, IRIS agents begin falling to the ground from Jung Yoo Gun's perfect aim. Ray is also shot by Jung Yoo Gun and gets captured alive by the NSS. This marked the beginning of Jung Yoo Gun's return as an NSS agent.