
8.3
Set in the 1980s, a husband and wife, both detectives, infiltrate a massive criminal organization responsible for the illegal drug trade between Korea, China, and Japan.
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1Episode 1Episode 1
54 min
Detective Jun-mo goes undercover within Gangnam Union to probe an international drug trade.
2Episode 2Episode 2
53 min
Barely passing Gi-cheul's test, Jun-mo joins Gangnam Union and discovers an unexpected truth.
3Episode 3Episode 3
54 min
Eui-jeong's appearance puts the squad in trouble. Gi-cheul finds last night's attack suspicious.
4Episode 4Episode 4
55 min
The team seeks Eui-jeong's aid to assist Jun-mo in a crisis, which leads to a perilous love triangle.
5Episode 5Episode 5
53 min
Earning Gi-cheul's trust, Jun-mo becomes anxious as he sees Gi-cheul making a move towards Eui-jeong.
6Episode 6Episode 6
61 min
The delivery accident jeopardizes the trade. Detective Hwang closely surveils Gangnam Union.
7Episode 7Episode 7
70 min
Hae-ryun shows interest in Jun-mo and Eui-jeong approaches Gi-cheul. Jun-mo takes an extreme measure.
8Episode 8Episode 8
59 min
Gi-cheul suspects Jun-mo. The four people's irreversible decisions trigger the biggest crisis.
9Episode 9Episode 9
54 min
The battle with Jae-geon creates a crack. Jun-mo joins forces with Hae-ryun to resume the trade.
10Episode 10Episode 10
59 min
Jun-mo and Eui-jeong juggle duty and feelings. Hwang continues to meddle, and the final day arrives.
11Episode 11Episode 11
54 min
An accident halts the trade and a crisis approaches as Eui-jeong and Do-hyung worry about Jun-mo.
12Episode 12Episode 12
67 min
Gi-cheul and Jun-mo make their way to the final deal. Korea, China, and Japan prepare for the arrest.

Ji Chang-wook
Park Jun-mo

Wi Ha-jun
Jung Gi-cheol

Lim Se-mi
Yoo Eui-jeong

BIBI
Lee Hae-ryeon

Im Sung-jae
Choi Jeong-bae

Cha Rae-hyung
Hong Hee-seong

Lee Shin-ki
Seo Jong-ryeol

Jeong Jae-kwang
Kwon Tae-ho

Bae Myeong-jin
Bae Yong-dae

Ji Seung-hyun
Seok Do-hyung

Yoon Kyung-ho
Hwang Min-goo

Kim Beom-soo
Detective Go
6.4