Ace NIS agent Jung Hae-seong is demoted after a mission failure. He goes undercover at a high school to locate King Gojong's missing gold, meeting his teacher Oh Soo-ah, who sees him as her lost first love, stirring old heartbreak.
Seo Kang-joon
Jeong Hae-sung
Jin Ki-joo
Oh Su-ah
Kim Shin-rock
Seo Myung-ju
Kim Min-ju
Lee Ye-na
Yoon Ga-i
Park Mi-jung
Kim Young-ah
Im Chung-ha
Lee Hyun So
Han Seung-jae
Yun Chae-bin
Yun Chae-rin
Kim Sun-min
Ji Hyeon-jun
Ace NIS agent Jung Hae-seong is demoted after a mission failure. He goes undercover at a high school to locate King Gojong's missing gold, meeting his teacher Oh Soo-ah, who sees him as her lost first love, stirring old heartbreak.
Nikita is a drug-addicted juvenile delinquent who was accused of killing a police officer in cold blood during an attempted robbery of a pharmacy. She is later arrested and sentenced to death by lethal injection, upon which she was secretly drugged by the government, faking her death. Nikita is then "recruited" by a secret government organization and transformed into a highly skilled assassin who cannot be traced.
Wandering in and out of he underbelly of Los Angeles, where criminals roam free under the veil of night or hide in the shadows of day, is routine for Lieutenant Carter Shaw and his special undercover task force. This team understands that to bring down a criminal, one must first get on their level.
As drugs flood the streets of '90s Britain, a team of civil servants is thrust undercover to topple the gangs behind it.
Dan Chase absconded from the CIA decades ago and now lives off the grid. When an assassin arrives and tries to take Chase out, the old operative learns that to ensure his future he now must reconcile his past.
A former special forces soldier delivers revenge for victims of injustice while working for a secret organization that fronts as a taxi company.
Alex Rider is an ordinary teenager enlisted to work on behalf of MI6, where he uses skills he didn't know he had to become an extraordinary spy.
A slightly unhinged former Navy SEAL lands a job as a police officer in Los Angeles where he's partnered with a veteran detective trying to keep maintain a low stress level in his life.
The origin story of younger, hungrier, former Green Beret Bryan Mills as he deals with a personal tragedy that shakes his world. As he fights to overcome the incident and exact revenge, Mills is pulled into a career as a deadly CIA operative, a job that awakens his very particular, and very dangerous, set of skills.
What if you lost your memory? What if a spy didn't know they were a spy? Years ago, the top agents of Citadel, Mason Kane and Nadia Sinh, had their minds wiped. But, they're called back to action as sinister forces emerge from the past. With the help of spymaster Bernard Orlick, these former lovers must remember the past to save the future.
To combat rising violent crimes, the Police Chief asks Detective Oh Goo Tak to form a team consisting of criminals. He is currently suspended from the police force for using excessive force. He then gathers team members: Park Woong Chul who is a gangster, Lee Jung Moon who is the youngest serial killer with extraordinary intelligence and Jung Tae Soo who is a contract killer. Police Inspector Yoo Mi Young also joins the team and she tries to have these guys work as a team by dealing with them rationally and sometimes emotionally.