Undercover High School - Season 1

Run Time: 70 mins
Air Date: Fri, 21 Feb 2025
Average Rating: ⭐ 8 (18 votes)
MBC12 Episodes

The Emperor's Lost Gold
Season 1 - Episode 1
After a botched operation puts Hae-sung and his team in serious jeopardy, the only way for him to salvage his career at the NIS is to accept...

Spooky Stories
Season 1 - Episode 2
Hae-sung comes dangerously close to blowing his cover while searching for the hidden gold in Byeongmun High School's eerie old building, bar...

Ghost Story Riddles
Season 1 - Episode 3
Hae-sung uncovers a crucial clue hidden within the old building, but Chairwoman Seo quickly learns its potential connection to the elusive g...

Joining the Student Council
Season 1 - Episode 4
Hae-sung attends the anti-bullying committee session with a key witness who clears his name, while Dong-min finally finds the courage to sta...

Student Council
Season 1 - Episode 5
Hae Seong and the team grow increasingly concerned that Su A's suspicions could threaten his undercover mission. However, Hae Seong defies t...

Hye Seong's Father's Notebook
Season 1 - Episode 6
The school's security guard dies, leaving Hae Seong a notebook belonging to his missing father. The revelation is shocking, and he storms th...

The 24th Anniversary of Byeongmun High School
Season 1 - Episode 7
Hae Seong is caught off guard when he recognises Su A's childhood name, Bong Ja, which stirs memories of his first love and distracts him fr...

The Plan for VIP Students
Season 1 - Episode 8
After uncovering the possibility of a mole within the NIS, Hae Seong becomes increasingly distrustful of those around him, causing him to qu...

The Mathematics Teacher
Season 1 - Episode 9
As Su A recovers in the hospital following the attack during the break-in, Hae Seong and the team uncover the culprit: Lee Jun Ho, the mathe...

Retribution
Season 1 - Episode 10
To everyone's shock, Seo Myeong Ju returns to the school. Unimpressed by Hae Seong, she expels him and demonstrates her power by dismantling...

The Devastating Truth
Season 1 - Episode 11
The gold bars vanish just as they are within reach, and Seo Myeong Ju suspects Hae Seong has them. In the vault, Hae Seong makes a heartbrea...

Where The Stars Lead
Season 1 - Episode 12
Despite getting badly injured, Hae Seong manages to call Su A and his team. They conclude that the only evidence they can secure is the flas...