Episode guide
Teach You a Lesson: Season 1
10 episodes · premiered Jun 5, 2026
The National Assembly and the Minister of Education passes the Amendment to the Act on the Protection of Teachers' Rights. With the passage of the law, a new government organization, the Educational Rights Protection Bureau, is formed. Na Hwa-jin belongs to the Educational Rights Protection Bureau. He is sent to a problem school as a supervisor. There, he can educate the students without any restrictions or limitations.
- Episode 1: Episode 1 Jun 5, 2026 · 52m · TMDB 8.1 Inspector Na Hwa-jin steps into the chaos and takes control of a school plagued by the spoiled son of a powerful politician — to teach him a lesson.
- Episode 2: Episode 2 Jun 5, 2026 · 57m · TMDB 8.0 With unassuming Bong Geun-dae on his side, Hwa-jin uses his special ops skills to handle a school gang and defend a student who just wants to study.
- Episode 3: Episode 3 Jun 5, 2026 · 1h 12m When a teen influencer spreads false claims about her teachers, the team's loose-cannon Inspector Im Han-rim steps in to set the record straight.
- Episode 4: Episode 4 Jun 5, 2026 · 1h 8m Choi Gang-seok weathers a political attack on his bureau. Hwa-jin's team visits an elite school to uncover why a student attacked a respected teacher.
- Episode 5: Episode 5 Jun 5, 2026 · 1h 6m When an elementary school teacher's spirit wears down under pressure, Hwa-jin steps in to be her substitute — turning the tables to solve the case.
- Episode 6: Episode 6 Jun 5, 2026 · 1h 9m Four juvenile delinquents think they're above the law — until the team takes an interest in their extracurricular crimes and gives a harsh reality check.
- Episode 7: Episode 7 Jun 5, 2026 · 1h 4m Geun-dae goes undercover to help a father find his gambling addict son. To undermine the bureau politically, Hwang Gi-tae visits a juvenile inmate.
- Episode 8: Episode 8 Jun 5, 2026 · 1h After a pre-med student collapses in class, Hwa-jin investigates his obsessive mother, whose access to illicit pills hints at a larger conspiracy.
- Episode 9: Episode 9 Jun 5, 2026 · 1h 7m To help a student escape his exploitative friends, Han-rim adopts a new persona to join his circle. Cho Gyu-cheol's return puts the bureau in danger.
- Episode 10: Episode 10 Jun 5, 2026 · 1h 1m After public backlash hits the bureau, Hwa-jin and his team go rogue to expose a deadly conspiracy led by a violent student-run gang.