S01E011:11:061. The Emperor's Lost GoldAfter 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 an assignment that seems…
Undercover High School Season 1 – Watch online
12 episodes · since February 21, 2025
All episodes of season 1 of Undercover High School: summaries, air dates, ratings and legal platforms (dubbed or subtitled depending on the platform).
S01E011:11:061. The Emperor's Lost GoldAfter 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 an assignment that seems…
S01E021:07:002. Spooky StoriesHae-sung comes dangerously close to blowing his cover while searching for the hidden gold in Byeongmun High School's eerie old building, barely escaping detection by…
S01E031:09:263. Ghost Story RiddlesHae-sung uncovers a crucial clue hidden within the old building, but Chairwoman Seo quickly learns its potential connection to the elusive gold bars. Sensing the…
S01E041:06:174. Joining the Student CouncilHae-sung attends the anti-bullying committee session with a key witness who clears his name, while Dong-min finally finds the courage to stand up for himself. With his…
S01E051:08:195. Student CouncilHae Seong and the team grow increasingly concerned that Su A's suspicions could threaten his undercover mission. However, Hae Seong defies the odds and successfully…
S01E061:10:336. Hye Seong's Father's NotebookThe school's security guard dies, leaving Hae Seong a notebook belonging to his missing father. The revelation is shocking, and he storms the NIS for answers. The answer…
S01E071:05:517. The 24th Anniversary of Byeongmun High SchoolHae 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 from his focus. Despite the…
S01E081:10:428. The Plan for VIP StudentsAfter uncovering the possibility of a mole within the NIS, Hae Seong becomes increasingly distrustful of those around him, causing him to question the mission's…
S01E091:08:169. The Mathematics TeacherAs 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 mathematics teacher. When Hae…
S01E101:07:5310. RetributionTo everyone's shock, Seo Myeong Ju returns to the school. Unimpressed by Hae Seong, she expels him and demonstrates her power by dismantling his team. However, refusing…
S01E111:08:2711. The Devastating TruthThe 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 heartbreaking discovery of his…
S01E121:09:1712. Where The Stars LeadDespite getting badly injured, Hae Seong manages to call Su A and his team. They conclude that the only evidence they can secure is the flash drive that contains the…Where to stream Undercover High School Season 1
Subscription
Rakuten Viki
OnDemandKorea
Kocowa Amazon Channel
Kocowa
Rakuten VikiOnDemandKoreaKocowa Amazon ChannelKocowaFree with adsRakuten Viki
Rakuten VikiAvailability provided by JustWatch via TMDB, details on TMDB. Offers in the United States, subject to change.
About season 1
Season 1 of Undercover High School has 12 episodes, aired from February 21, 2025 to March 29, 2025 on MBC. Episodes run 68 minutes on average. The highest rated episode is “The Mathematics Teacher” (S01E09, 9.0/10).
Frequently asked questions about Undercover High School Season 1
How many episodes are in Undercover High School Season 1?
Undercover High School Season 1 has 12 episodes.
When did Undercover High School Season 1 air?
The first episode aired on February 21, 2025 and the last one on March 29, 2025.
Where to watch Undercover High School Season 1 online?
In the United States, Undercover High School is available with a subscription on Rakuten Viki, OnDemandKorea and Kocowa Amazon Channel, for free with ads on Rakuten Viki (source: JustWatch via TMDB, offers subject to change). Availability of each season depends on the platform.