After his mother is brutally murdered by the Triad in Thailand, Soo-hyun is adopted by NIS agent Kang Joong-ho, and he grows up with Min-ki like brothers. Min-ki and Soo-hyun both become NIS agents later on. One fateful day, Soo-hyun meets Ji-woo after last seeing her in Thailand when he was a child. They start dating. One day, Soo-hyun ruins a mission when the suppressed memories of the day his mother died surfaces in his mind. NIS Director Jung gives Soo-hyun an undercover assignment to infiltrate the Triad and Soo-hyun takes the job. Soo-hyun fakes his death and assumes a new identity to become a member of the Triad. With his fake identity and new name, he prowls the back alleys of Bangkok.
as Lee Soo Hyun
as Seo Ji Woo
as Kang Min Ki
as Jung Hak Soo
as Kang Jung Ho
as Oh Seung Joo
as Giraffe
as Bae Sang Shik
as Mr. Byun
as Mao
as Yoo Kyung-hwa
as Chao Ming
as Myung Ae
as Seo Young Gil
