Seo Kang-joon Arrested on Murder Charges in Undercover High School

Seo Kang-joon has been arrested on charges of murdering Lee Seo-hwan in the latest episode of MBC's Friday-Saturday drama, Undercover High School (언더커버 하이스쿨). In the 11th episode, his character, Jeong Hae-seong, finds himself thrust into a dire situation, being accused of murder overnight. The episode garnered impressive ratings, achieving 6.3% in the Seoul metropolitan area and 6.0% nationwide, with a peak of 10.3% during a tense scene involving Hae-seong's transport vehicle. The 2049 viewership rating, a key indicator of channel competitiveness, stood at 2.2%, reflecting the drama's strong appeal among fans.

In the previous episode, Seo Myung-joo (played by Kim Shin-rok) discovers a hidden passage beneath a bust and enters in search of gold bars, only to find no trace of them, which infuriates her. Meanwhile, Hae-seong uncovers his father's skeletal remains in the underground area and finds a bullet casing. Forensic analysis reveals that the firearm used was exclusive to high-ranking officials in the National Intelligence Service (NIS) 22 years ago, linking it to a past incident involving the victim, Kim Guk-jang (Lee Seo-hwan).

Hae-seong confronts Kim Guk-jang in his hotel room, demanding answers about the bullet found with his father's remains. Their confrontation escalates into a physical struggle, interrupted by security personnel who drag Hae-seong away. Despite the efforts of Oh Soo-ah (Jin Ki-joo) and the NIS Domestic Team 4 to rescue him, Hae-seong manages to escape after a scuffle.

Hae-seong grows suspicious of Myung-joo, as both his father's notebook and death occurred at the hospital where she and Kim Guk-jang were involved. He also discovers shocking information through surveillance on Kim Guk-jang's phone, revealing that Myung-joo shot his father during a confrontation years ago.

Later, when Hae-seong visits Kim Guk-jang, he finds him bleeding in a car, but before he can react, he is struck on the head and loses consciousness. This incident leads to Hae-seong being wrongfully accused of Kim Guk-jang's murder, intensifying the drama's plot. The tension escalates further when Hae-seong and Myung-joo engage in a fierce psychological battle during an interrogation.

In the episode's climax, Hae-seong fights with police while being transported, resulting in a crash with an oncoming vehicle. He struggles to escape the wreckage, retrieves a key from an officer's pocket, and frees himself. In a desperate moment, he calls Soo-ah from a payphone, asking for help before collapsing, leaving viewers on the edge of their seats for the next episode.

The 11th episode of Undercover High School reveals the truth behind Hae-seong's father's death, while he faces the unjust murder accusation, heightening the drama's suspense. As the series approaches its finale, viewers are left wondering how Hae-seong will protect himself and what fate awaits Myung-joo.