Season
Episodes
Ghost Agent K
We 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
Neither 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
After 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?
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
For 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
Seol-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
To 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
Do-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
For 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
Jang 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
Seol-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
All 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"
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
The 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
For 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
For 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
Park Hae-jin
Kim Seol-woo / Ghost Agent K
Park Sung-woong
Yeo Woon-Gwang
Jang Hyun-sung
Department Head Jang
Jeong Man-sik
Lee Dong-Hyun
Lee Si-eon
CEO Ji
Oh Na-ra
Sharon Kim
Yeon Jeong-hun
Mo Seung-Jae
Tae In-ho
Seo Ki-Chul
Chae Jung-an
Song Mi-Eun
Kim Min-jung
Cha Do-Ha
Park Hae-jin
Kim Seol-Woo
Cheon Ho-jin
Lawmaker Baek