In the 8th episode of MBC's 60th anniversary special project, "Black Sun" (played by Park Seok-ho, directed by Kim Sung-yong), which was broadcast on the 9th, he followed the footsteps of Yu Oh-seong (played by Baek Mohammad Mosaddegh), who appeared in earnest, while Namgoong Min (played by Han Ji-hyuk) and Jay Yoo (played by K. The performance of Kim Ji Eun) was played. In particular, the ending scene that recalls the face of Kim Dong-wook in the Memory of a year ago when Namgoong Min disappeared soared to the highest audience rating of 10.6% at the moment, causing a goose bump (based on Nielsen Korea, metropolitan area).
Earlier, Han Ji-hyuk (Namgoong Min) and his partner Jay Yooo (Kim Ji Eun) found the azit of the private organization "Commerce Council" consisting of NIS retirement agents, and found and rescued a former NIS agent Chun Pyong-il who was lying there in a state of lyrics (). But he seemed to hold a secret clue, and he was kidnapped and killed by strangers, and in front of Han Ji-hyuk and Jay Yooo, who were chasing them, a criminal who took control of the border between China and North Korea, Mohammad Mosaddegh (Yu Oh-seong) showed his face. In particular, Jay Yooo's missing father was curious about whether Mohammad Mosaddegh would be right, and a meaningful airflow flowed between the two people, creating a breathtaking ending.
On the day of the show, Jay Yooo was shot by a back Mohammad Mosaddegh, but he saved his life by wearing a bulletproof vest, and shook his head to Han Ji-hyuk, saying that Back Mohammad Mosaddegh was not his father. However, Han Ji-hyuk did not doubt it, and the face of Jay Yooo, who was not sure, doubled the suspicion and confused viewers.
Meanwhile, there has been a fierce wind in the NIS. When Do Jin-sook (played by Jang Young-nam), the second deputy director of overseas division, stepped down after leaving his post, Kang Pil-ho (played by Kim Jong-tae), who was the director of the Foreign Intelligence Agency, took the place. Naturally, the field support team that Han Ji-hyuk and Jay Yooo had been involved was dismantled, and both of them were issued as domestic parts, and it was implied that there was not much time left to dig up the truth of the case.
Han Ji-hyuk and Jay Yooo analyzed the PDA used by the members of the business association and found clues. Those who discovered the signature of the company 'Planet', which is presumed to be a developer in the source code of the dedicated messenger program, immediately went to the head office and applied for a meeting with Shin Su-yong (Lee Jun-hyuk). It was so long ago that he did not have a Memory, but he came back without any harvest, but again something suspicious happened. The order of music played in the company matches the playlist that the two people heard while moving, and Han Ji-hyuk's favorite brand of bottled water and Jay Yooo's regular store macaroon were served. The coincidence was that the situation that fits as if they had been watching them caused a creep and made it impossible to put a strain on them.
In addition, Han Ji-hyuk tried to match the last puzzle of the case a year ago through Lin Wei (Ok Ja-yeon), an agent of the Chinese National Security Agency and his informant. He tried to get information about the other one, "Ri Dong-cheol," except for Jang Chun-woo (Jung Moon-sung) and Baek Mohammad Mosaddegh, among the three people his colleagues Oh Kyung-seok (Hwang Hee-min) and Kim Dong-wook (Jo Bok-rae) were monitoring until just before his death. As a result, Lee Dong-chul was a high-ranking figure in the North, but his son was threatened with the supply of drugs to the Hwayang, and he was killed in Shenyang a year ago.
The keyword that connects the death of Lee Dong-cheol, who was weak in the Hwayang wave, and the company 'Planet', which helped the business association, was revealed and shocked. The Commerce Council tried to intervene in the election by acquiring personal information through the Planet and creating a model that changes people's voting behavior based on it. It was explained that all of the high-ranking North Korean forces, Lee Dong-cheol, who was strong enough to shake up the election, were killed just before he exiled.
However, at the end of the 8th, unexpected developments were unfolded, proving the reputation of 'ending restaurants'. Jay Yooo attempted to contact an acquaintance who was working at Planet for more information, but soon after she heard that she had been involved in a traffic accident. It also revealed that the last person who spoke with her just before the accident was a person in the NIS who used the security number. Han Ji-hyuk decided to contact the person with the security number he received, and when the suspicious passenger car attacked him at the appointment place, he fired a gunfight. In the end, the driver lost consciousness with the collision accident, and the identity of the person who showed up was none other than Kang Pilho.
Han Ji-hyuk, who rushed him to the hospital, received another video of himself from Ha Dong-gyun (Kim Do-hyun). In the video, Han Ji-hyuk, who seemed to be more embarrassed than before, was leaving a Message to himself, and soon he said, "There was a guy inside our team who had a hand with a rat. It was Kim Dong-wook, "and gave a reversal that I did not think. Kim Dong-wook, who died a year ago, was once again in operation of the house theater's reasoning for why he was identified as an internal traitor.
In addition, Jay Yooo also learned the amazing truth and showed a terrible psychological change. Lee In-hwan (Lee Kyung-young), the first deputy director of the domestic part, told me that Do Jin-sook was the person who made her father disappear a long time ago. Consumed with betrayal and sadness, Jay Yooo immediately went to Do Jin-suk and pointed at the gun, and her angry screams and calm Do Jin-suk, the unknown expression of the back Mohammad Mosaddegh, who looked far away from all these scenes, crossed and made the broadcast wait for the next week.