Undercover High School
언더커버 하이스쿨
“21 Jump Street meets a hunt for King Gojong's lost gold”
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
as Jeong Hae-sung · LEAD
Seo Kang-joon
Jeong Hae-sung
Jin Ki-joo
as Oh Su-ah · LEAD
Jin Ki-joo
Oh Su-ah
Kim Shin-rock
as Seo Myung-ju · SUPPORTING
Kim Shin-rock
Seo Myung-ju
Kim Min-ju
as Lee Ye-na · SUPPORTING
Kim Min-ju
Lee Ye-na
Yoon Ga-i
as Park Mi-jung · SUPPORTING
Yoon Ga-i
Park Mi-jung
Kim Young-ah
as Im Chung-ha · SUPPORTING
Kim Young-ah
Im Chung-ha
Lee Hyun So
as Han Seung-jae · SUPPORTING
Lee Hyun So
Han Seung-jae
Yun Chae-bin
as Yun Chae-rin · SUPPORTING
Yun Chae-bin
Yun Chae-rin
Streaming
Where to watch
Availability varies by region · Data by JustWatch via TMDB
Quick verdict
Should you watch?
✓Seo Kang-joon fans, viewers who like goofy undercover action comedies, anyone who enjoyed 21 Jump Street
✗Cartoonish villains and tonal swings bother you; many felt the second half lost steam
Story
What is it really about
An elite NIS agent facing demotion is sent back to high school, as a student, to find King Gojong's missing gold bars. The school's secrets turn out dirtier than the treasure hunt, and his cover keeps slipping in front of a contract history teacher.
Did you know
Trivia & facts
Soundtrack
OST
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FAQ