|Min-sik Choi||Section head Kang|
|Jeong-min Hwang||Jung Chung|
|Seong-Woong Park||Lee Jung-gu|
|Il-hwa Choi||Jang Soo-Ki|
|Gwang Jang||Director Yang|
|Ham Jin-Sung||Jung Chung's underling|
Undercover officer Ja-sung infiltrates the biggest crime syndicate in Korea and spends eight years rising in the ranks. When the head of the organization is killed, Ja-sung becomes torn between his loyalties.