Byungmoon, Korea’s top private high school, is rife with corruption, where status and success matter most. Hae-sung, a top NIS agent, goes undercover at Byungmoon to find Emperor Gojong’s hidden gold and uncover the truth behind his father’s disappearance. Cold and calculated, he sees the school as an obstacle—until he connects with students and a former crush and becomes a reluctant hero. Torn between duty and newfound bonds, can he still complete his mission?
You can now watch Undercover High School online on the following streaming providers in the United States.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | The Emperor's Lost Gold | 2025-02-21 | 70 min |
| Season 1 | Episode 2 | Spooky Stories | 2025-02-22 | 70 min |
| Season 1 | Episode 3 | Ghost Story Riddles | 2025-02-28 | 70 min |
| Season 1 | Episode 4 | Joining the Student Council | 2025-03-01 | 70 min |
| Season 1 | Episode 5 | Student Council | 2025-03-07 | 70 min |
| Season 1 | Episode 6 | Hae-sung's Father's Notebook | 2025-03-08 | 70 min |
| Season 1 | Episode 7 | The 24th Anniversary of Byeongmun High School | 2025-03-14 | 70 min |
| Season 1 | Episode 8 | The Plan for VIP Students | 2025-03-15 | 70 min |
| Season 1 | Episode 9 | The Mathematics Teacher | 2025-03-21 | 70 min |
| Season 1 | Episode 10 | Retribution | 2025-03-22 | 70 min |
| Season 1 | Episode 11 | The Devastating Truth | 2025-03-28 | 70 min |
| Season 1 | Episode 12 | Where the Stars Lead | 2025-03-29 | 70 min |
| Writing | Im Young-bin | Writer |
| Directing | Choi Jeong-in | Director |
