A Daring Rescue and a Dangerous Secret
Episode 4 of High School Return of A Gangster opens with a high-octane kidnapping attempt. Yi-heon and Se-kyung stumble upon a terrifying scene – the Dong-soo gang, with Jae-min as an unwitting accomplice, trying to abduct Yi-heon's mother. Their combined efforts foil the plan, sending the kidnappers scrambling.

Lies and Cover-Ups
Yi-heon, ever pragmatic, chooses to downplay the incident with the police, suspecting Mi-kyung, his father's secretary, as the mastermind. Se-kyung, conflicted between loyalty and truth, lies to his own father about a fabricated attack. Witnessing Yi-heon's unwavering determination to protect his family inspires a deep admiration in Se-kyung.
Unveiling Agendas
Meanwhile, the Dong-soo gang faces the consequences of their botched mission. Se-kyung, determined to unravel the truth, delves deeper into Yi-heon's past, contemplating the possibility of a split personality. Dong-soo, burdened by his promise to Mi-kyung, wrestles with his conscience regarding their next move.
An Unlikely Alliance
A twist of fate brings Jae-min, the former bully, to Yi-heon's doorstep, seeking refuge. Despite his initial resentment, Yi-heon offers Jae-min temporary shelter and a chance to redeem himself. Se-kyung, ever vigilant, joins them, forming an uneasy three-way alliance.
A Shocking Revelation
Through skillful interrogation, Yi-heon forces the truth from Jae-min. He learns about the gang's involvement in the kidnapping attempt and, more importantly, their leader – Dong-soo.
The Plot Thickens
The episode ends with a cliffhanger – Yi-heon, venturing out alone, is captured by Dong-soo. As the boys head back to school the next day, Se-kyung continues his investigation, further blurring the lines between doubt and trust. Dong-soo, grappling with moral ambiguity, prepares to confront Yi-heon.
With unanswered questions and a deepening conflict, the stage is set for an explosive showdown in the next episode.