S01E01 Episode 1
After meeting a friend from 20 years ago, Jae Gyeong gets abducted and becomes addicted to an unknown drug.
Connection
A drug-addicted narcotics team ace
Overview
Someone causes a narcotics unit detective to become addicted to drugs. What is the connection between them?
Episodes
S01E02 Episode 2
Jae Gyeong reunites with his friends from 20 years ago and finds them suspiciously linked to Jun Seo's death.
S01E03 Episode 3
Jun Seo's body undergoes an autopsy, while Jae Gyeong and Yoon Jin dig deeper into Myung Guk's identity.
S01E04 Episode 4
Jae Gyeong finds a lead in solving Jun Seo's death, and Yoon Jin discovers something shocking about Ji Yeon.
S01E05 Episode 5
Someone tries to stop Jae Gyeong from investigating Jun Seo's death, but it doesn't stop him.
S01E06 Episode 6
Jae Gyeong connects Lemon Mulberry to Jun Seo's death. With a lead, he goes undercover to meet the dealer.
S01E07 Episode 7
Yoon Jin faces an unexpected crisis, and Jae Gyeong gets a lead from a dashcam video that makes him freeze.
S01E08 Episode 8
Jae Gyeong connects incidents on the day of Jun Seo's death that reward him with a lead in the mill murder.
S01E09 Episode 9
Jae Gyeong connects the murder of the mill owner to Jun Seo's death while fighting withdrawal symptoms.
S01E10 Episode 10
Jae Gyeong chases down the person who drugged him, leading him to CEO Yoon and closer to solving the case.
S01E11 Episode 11
Jae Gyeong chases Yoon Ho with Si Jung's intel, and Yoon Ho makes his last attempt to escape and survive.
S01E12 Episode 12
Suspicion and distrust form over Yoon Ho, while Sang Eui exposes the truth to Jae Gyeong and Yoon Jin.
S01E13 Episode 13
Tae Jin retaliates against Jong Soo's attack, while Jae Gyeong sets up an operation to arrest Jin Wook.
S01E14 Episode 14
The connection between friends driven by greed comes to face a tragic end to learn the meaning of friendship.
Cast
Ji Sung
Jang Jae-gyeong
Jeon Mi-do
Oh Yoon-jin
Kwon Yul
Park Tae-jin
Kim Kyung-nam
Won Jong-soo
Jung Yoo-min
Choi Ji-yeon
Jung Soon-won
Heo Joo-song
Yoon Na-moo
Park Jun-seo
Seo Yi-ra
Oh Soo-hyun
Jeong Jae-kwang
Kim Chang-soo
Cha Yeob
Oh Chi-hyeon
Lee Kang-wook
Jung Yoon-ho
Cho Han-gyeol
Young Jang Jae-gyeong
