Teach You a Lesson

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  E1

  Episode 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.

  2026-06-05 · 52m
  Mark watched
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  E2

  Episode 2

  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.

  2026-06-05 · 57m
  Mark watched
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  E3

  Episode 3

  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.

  2026-06-05 · 72m
  Mark watched
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  E4

  Episode 4

  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.

  2026-06-05 · 68m
  Mark watched
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  E5

  Episode 5

  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.

  2026-06-05 · 66m
  Mark watched
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  E6

  Episode 6

  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.

  2026-06-05 · 69m
  Mark watched
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  E7

  Episode 7

  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.

  2026-06-05 · 64m
  Mark watched
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  E8

  Episode 8

  After a pre-med student collapses in class, Hwa-jin investigates his obsessive mother, whose access to illicit pills hints at a larger conspiracy.

  2026-06-05 · 60m
  Mark watched
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  E9

  Episode 9

  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.

  2026-06-05 · 67m
  Mark watched
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  E10

  Episode 10

  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.

  2026-06-05 · 61m
  Mark watched

Top cast

Kim Moo-yul

Na Hwa-jin

Lee Sung-min

Choi Kang-seok

Jin Ki-joo

Im Han-rim

Pyo Ji-hoon

Bong Geun-dae