
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