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E1
54 min 1. Episode 1
Detective Jun-mo goes undercover within Gangnam Union to probe an international drug trade.
E2
53 min 2. Episode 2
Barely passing Gi-cheul's test, Jun-mo joins Gangnam Union and discovers an unexpected truth.
E3
54 min 3. Episode 3
Eui-jeong's appearance puts the squad in trouble. Gi-cheul finds last night's attack suspicious.
E4
55 min 4. Episode 4
The team seeks Eui-jeong's aid to assist Jun-mo in a crisis, which leads to a perilous love triangle.
E5
53 min 5. Episode 5
Earning Gi-cheul's trust, Jun-mo becomes anxious as he sees Gi-cheul making a move towards Eui-jeong.
E6
61 min 6. Episode 6
The delivery accident jeopardizes the trade. Detective Hwang closely surveils Gangnam Union.
E7
70 min 7. Episode 7
Hae-ryun shows interest in Jun-mo and Eui-jeong approaches Gi-cheul. Jun-mo takes an extreme measure.
E8
59 min 8. Episode 8
Gi-cheul suspects Jun-mo. The four people's irreversible decisions trigger the biggest crisis.
E9
54 min 9. Episode 9
The battle with Jae-geon creates a crack. Jun-mo joins forces with Hae-ryun to resume the trade.
E10
59 min 10. Episode 10
Jun-mo and Eui-jeong juggle duty and feelings. Hwang continues to meddle, and the final day arrives.
E11
54 min 11. Episode 11
An accident halts the trade and a crisis approaches as Eui-jeong and Do-hyung worry about Jun-mo.
E12
67 min 12. Episode 12
Gi-cheul and Jun-mo make their way to the final deal. Korea, China, and Japan prepare for the arrest.
In 1990s Gangnam, they ran the streets.
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.
Genres: Crime, Action & Adventure, Drama
Stars: Ji Chang-wook, Wi Ha-jun, Lim Se-mi, BIBI, Im Sung-jae
