“The K2” is a 2016 South Korean television series starring Ji Chang-wook, Song Yoon-ah, and Im Yoon-ah. It premiered on tvN every Friday and Saturday at 20:00 (KST) from September 23 to November 12, 2016, for 16 episodes.
The story revolves around Kim Je Ha, a former mercenary soldier known as “K2” who suddenly turns into a fugitive when he is wrongfully accused of killing his girlfriend while he is serving in Iraq. He finds his way back to Korea and gets a job as a bodyguard for Choi Yoo Jin, the owner of JSS Security and the wife of Jang Se Joon, who is running for president. Je Ha uses his new job to plan his revenge on Park Kwan Soo, the leader of the current ruling party and Se Joon’s rival, whom Je Ha believes ordered the murder of his girlfriend. When Je Ha is assigned to guard Go An Na, the reclusive illegitimate daughter of Se Joon, they begin to develop feelings for each other.
The series falls under the genres of Drama, Romance, and Thriller. It consists of 16 episodes and has an IMDb rating of 7.8/10 and a MyDramaList rating of 8.2/10.