"IRIS 2" Jang Hyuk reappeared with Yoo Min as a coldblooded killer for the terror group IRIS.

During the 6th episode of the KBS drama "IRIS 2" that aired on February 28, Jung Yoo Gun (Jang Hyuk) reappears as a coldblooded killer after his disappearance. Previously, Jung Yoo Gun was shot in the head by IRIS and disappeared shortly after.

Jung Yoo Gun was considered dead after being shot by an IRIS sniper. However, Jang Hyuk reappears in Japan as a completely different man named Ken. Ken is accompanied by Leeara (Yoo Min).

After losing all of his memories, Ken (or Jung Yoo Gun) is manipulated into thinking he is a secret member of IRIS and continues to carry out their orders as a coldblooded killer. Also, it appears as though Ken and Leeara are romantically involved, causing an explosive amount of curiosity among the viewers.