Undercover High School
Returning Series
2025
12 Episodes
70 min
10
Popularity
i
Popularity is a TMDB metric that combines page views, search traffic, votes, and trending activity. It’s dynamic and updates daily. The higher the number is, the more popular the show is
7.9
/10TMDB Rating
8.21
/10AER
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AER stands for “Average Episode Rating” and is calculated by averaging all rated episodes.
|
| Ep 1 | Ep 2 | Ep 3 | Ep 4 | Ep 5 | Ep 6 | Ep 7 | Ep 8 | Ep 9 | Ep 10 | Ep 11 | Ep 12 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S1 | 8.0 | 8.0 | 8.0 | 8.0 | 8.0 | 8.0 | 8.0 | 8.0 | 9.0 | 9.0 | 8.0 | 8.5 |
Highlights
Best Episode
S1E9 - The Mathematics Teacher(9.0/10)
2025-03-21
Worst Episode
S1E1 - The Emperor's Lost Gold(8.0/10)
2025-02-21
Top 5
S1E9
The Mathematics Teacher
2025-03-21
9.0
S1E10
Retribution
2025-03-22
9.0
S1E12
Where The Stars Lead
2025-03-29
8.5
S1E1
The Emperor's Lost Gold
2025-02-21
8.0
S1E2
Spooky Stories
2025-02-22
8.0
Created by
Cast
Synopsis
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.