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With a clue left by himself in a video he made one year ago, Ji Hyuk rushes to find the traitor within the agency. However, Je Yi turns her back on Ji Hyuk as she feels betrayed by him. Meanwhile, Ji Hyuk rushes to the scene where Baek Mo Sa and Deputy Commissioner Do are meeting.
Namkoong Min
Han Ji-hyuk
Park Ha-seon
Seo Soo-yeon
Kim Ji-eun
Yoo Je-yi
Kim Byeong-gi
Bang Yeong-chan
Lee Kyung-young
Lee In-hwan
Jang Young-nam
Do Jin-sook
Yu Oh-seong
Baek Mo-sa
Kim Jong-tae
Kang Pil-ho
Kim Min-sang
Jung Yong-tae
Kim Do-hyun
Ha Dong-kyun
Kwon So-hyun
Koo Hyo-Eun
Jung Moon-sung
Jang Cheon-woo
Hwang Hee
Oh Kyung-seok
Jo Bok-rae
Kim Dong-Wook
Park Jin-woo
Cha Min-Cheol
Hyun Bong-sik
Cheon Myung-ki
Jung Ji-yoon
Kim Yeo-jin
Ok Ja-yeon
Lin Wei
Ahn Seong-bong
Kim Young-Woo
Im Cheol-hyung
Kim Dong-Hwan
Choi Hee-jin
Staff
Jung Young-hoon
Do Jin-Sook's subordinate