“Undercover High School” is a comedy action drama that follows Jung Hae Sung (Seo Kang Joon), a National Intelligence Service (NIS) agent who goes undercover as a high school student to track down Emperor Gojong’s missing gold.
The teaser video offers a glimpse into Jung Hae Sung’s hectic school life. As an NIS agent, he enters the world of high school, leading to an unexpected double life.
The video begins with Hae Sung exuding confidence as he relentlessly pursues a target, showcasing his NIS skills. The scene shifts to him in a school uniform, where he appears determined. On his first day at the new school, Hae Sung quickly grabs his classmates’ attention with a dramatic entrance.
Amid the chaos, team leader Ahn Seok Ho (Jeon Bae Soo) urgently warns, “Don’t get involved with students.” Despite this, Hae Sung is seen standing with his classmate Lee Dong Min (Shin Jun Hang) in front of a suspicious building and clashing with their homeroom teacher Oh Soo Ah (Jin Ki Joo), setting the stage for a tense and unpredictable school life.
Hae Sung’s troubles grow when he gets drawn into mischief by the troublemaker Park Tae Soo (Jang Sung Bum), hinting that his school days will not be easy.
Watch the full teaser below!