电视剧围绕着国际犯罪团伙与调查组之间针锋相对的一场斗争，男主角的母亲被泰国的犯罪团伙杀害之后，他也被调查组的核心成员收养，两人一起长大，最终成长为调查组的核心成员，一次偶然机会，男主角也与小时候的朋友在韩国意外重逢，两人共同回忆起小时候的时光。当他们在进行一次作战任务时，他也回想起在泰国时的噩梦，由此打乱了他的心理状态，这场作战由此失败，而此时调查组的部长对他提议要他进入团伙里面去成为调查组的卧底，两人达成了协议，他也因故被开除，在这里他隐藏了自己的过去，为了报仇雪恨，他潜入到团队组织里面。 电视剧一共有16集，每集为45分钟，于2007年7月18日在韩国电视台播出，2007年9月6日结束上映

The drama revolves around a tit-for-tat struggle between an international criminal gang and the investigation team. Adopted by the core members of the investigation team, the two grew up together and eventually became the core members of the investigation team. By chance, the hero also unexpectedly reunited with his childhood friend in Korea, and the two recalled their childhood together. When they were conducting a combat mission, he also recalled the nightmare in Thailand, which disturbed his mental state, and the operation failed. At this time, the head of the investigation team proposed to him that he should join the gang Going inside to become an undercover agent of the investigation team, the two reached an agreement, and he was also fired for some reason. Here he hid his past, and in order to avenge his hatred, he sneaked into the team organization. The TV series has a total of 16 episodes, and each episode is 45 minutes long. It was broadcast on Korean TV on July 18, 2007, and ended on September 6, 2007