Ghost Agent KWe meet Kim Seol-woo during a hostage situation, where he takes out the hostage takers against orders. He's recruited by the NIS to become a ghost agent: deeply planted into organizations, fake identities and operating discreetly.
Working for Un Gwang
E2
Working for Un GwangNeither Woon-Gwang nor his chief celeb manager Cha Do-Ha likes his new bodyguard. If the can't make him leave, they'll just make him want to leave.
Visiting Chairman Victor
E3
Visiting Chairman VictorAfter leavening that Woon-Gwang has been involved in a similar accident before, Seol-Woo relays his suspicions to Lee Dong-Hyun, his comrade and mentor.
Did You Think I Liked You?
E4
Did You Think I Liked You?From Chairman Victor's private collection of precious cultural artefacts, a wood carving catches Seol-Woo's eye. Then the power suddenly goes out.
Go with Your Feelings
E5
Go with Your FeelingsFor his next task, Seol-woo must get close to Do-ha, but it isn't so easy when she has forbidden him to approach her within a 1-meter radius
Goldfinger Is Back
E6
Goldfinger Is BackSeol-woo gets drunk and sends cute text messages, all in the name of his mission. Meanwhile, Congressman Baek tries to make a deal with Jang Tae-ho.
From This Moment, I Resign
E7
From This Moment, I ResignTo stop Seol-woo from blowing his cover, Dong-hyun tells him to stay out of the investigation. However, Seol-woo continues his search for the culprit.
Being a Bodyguard Was a Disguise
E8
Being a Bodyguard Was a DisguiseDo-ha asks to hear the truth directly from Seol-woo. Meanwhile, Dong-hyun and Seol-woo begin preparation for their next mission, the Black Auction.
The Black Auction Mission
E9
The Black Auction MissionFor the country and Do-ha's father, Un-kwang decides to help Seol-woo. Do-ha, not able to trust Seol-woo, requires him to sign a contract.
An Agent's Tactic
E10
An Agent's TacticJang Tae-ho lays down his conditions to Mo Seung-jae. For their new mission to commence, Seol-woo and Do-ha must first get the approval of Un-kwang.
Finding the Mole
E11
Finding the MoleSeol-woo doesn't pick up Do-ha's phone calls, so she decides to check his workroom. Dong-hyun visits Jang Tae-ho and asks if he knows where K is.
The Path
E12
The PathAll sides involved, including Lee Dong-hyun, Mo Seung-jae and the National Intelligence Service, are continuing the search for the missing videotapes.
A Message From "Y"
E13
A Message From "Y"Jang Tae-ho and Lee Dong-hyun discuss Song Mi-eun and her past: She decided to marry Mo Seung-jae, not for his wealth but for her own survival.
Lovers Tactic
E14
Lovers TacticThe police find the vehicle involved in the hit-and-run accident. Determined to kill off the bad guys, Seol-woo gets his gun from his workroom.
Only the Truth Can Save You
E15
Only the Truth Can Save YouFor Seol-woo, it's finally time for revenge. For all involved, it's finally time for closure and for punishments to be given where they are due.
Life Must Go On
E16
Life Must Go OnFor Seol-woo, it's finally time for revenge. For all involved, it's finally time for closure and for punishments to be given where they are due.
Cast of Season 1
Park Hae-jinKim Seol-woo / Ghost Agent K
Park Sung-woongYeo Woon-Gwang
Jang Hyun-sungDepartment Head Jang
Jeong Man-sikLee Dong-Hyun
Lee Si-eonCEO Ji
Oh Na-raSharon Kim
Yeon Jeong-hunMo Seung-Jae
Tae In-hoSeo Ki-Chul
Chae Jung-anSong Mi-Eun
Kim Min-jungCha Do-Ha
Cheon Ho-jinLawmaker Baek
Kim Bo-miPark Song-I
Han Ji-SunChoi Sul-A
Lee Chang-minDirector
Kim Won-sukWriter
Ham Yeong-hoonProducer
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