IRIS

Hyun-joon (played by Lee Byung-hun) and Si-woo (played by Jung Jun-ho) are NSS (National Security Service) officials. They both fell in love with the beautiful boss Seung-hee (played by Kim Tae-hee), but the latter fell in love with Hyun-jun. Deputy Director Bai Shan sent them to rescue the scientist, who entrusted a USB flash drive to Xian Jun before his death. Baishan secret sect Xianjun assassinated North Korea's No. 2 figure. Xianjun fulfilled his mission, but was silenced. Out of brotherly love, Siyu let Xianjun go. The latter encountered an explosion when he was preparing to escape with Seung-hee. Hyun-joon flees to Japan, and settles the hatchet with the North Korean agent Sun-hwa (played by Kim So-yeon) who is tracking him, and they advance and retreat together. Seung-hee, who narrowly escaped death, firmly believed that Hyun-joon was still alive and violated the rules of the investigation many times. Xian Jun was hunted down in Japan, causing the tragic death of his savior and his family. Desperate, Xian Jun defected to North Korea and attacked the NSS headquarters with a terrorist organization. He met Seung Hee, who was longing for him, but still couldn't recognize him. Xian Jun finally unlocked the secret of the USB flash drive. It turned out that Bai Shan was his father-killing enemy, and there was a mysterious organization-IRIS hidden behind it. During high-level talks between North and South Korea, the guard captain plotted to create a terrorist explosion. During the pursuit, Seung Hee was captured alive by terrorists, and his lover actually faced him as his enemy. What greeted them was a more cruel conspiracy... This film is the first spy thriller produced by KBS with an investment of 20 billion won.