Kim Moo-yul
Na Hwa-jin
Teach You a Lesson Season 1 Episode 4 (2026)
"LET US PROTECT YOU!"
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Overview
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.
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Videos
![Behind the Scene [ENG SUB]](https://i.ytimg.com/vi/JrZBgVD3DDs/hqdefault.jpg)
Behind the Scene [ENG SUB]
![Official Trailer [ENG SUB]](https://i.ytimg.com/vi/LdezlX84py0/hqdefault.jpg)
Official Trailer [ENG SUB]
![Official Teaser [ENG SUB]](https://i.ytimg.com/vi/eaoy7O0SCn0/hqdefault.jpg)
Official Teaser [ENG SUB]