The Chapter 15 of "Seoul Busters" kicks off with Jong-ryeok and Jung-hwan indulging in a late-night dinner, having just pulled through an overnight marathon at work. As they settle into their favorite diner, their sharp instincts lead them to mistake a young man entering as a potential thief. The duo springs into action, ready to apprehend him, but the ahjumma, the owner, quickly corrects them, revealing him as her nephew, Min-sik, whom she summoned to fix her flickering lights.
Over a hearty meal, Min-sik reveals his plight, seeking their assistance. He's entangled in a web of online gambling and has borrowed money from loan sharks operating through a mobile app. Now, they're hot on his trail, demanding repayment. The next morning, Jong-ryeok and Jung-hwan present the case to their team, uncertain of their jurisdiction. Yu-bin, however, passionately argues for their intervention.
With that decided, the team dives into their investigation. Yu-bin catches his colleagues encrossed in an online game on the very app they're probing. They quickly blame Jong-ryeok for the distraction, laughing it off as part of their undercover strategy . Jong-ryeok counters, insisting this immersive experience has given them invaluable insight into the app's mechanics. A lively debate on their next move ensues, with Yu-bin struggling to steer the conversation back on track.
In parallel, whispers of the MZ gang, the shadowy force behind the gambling underworld, surface. Yu-bin proposes monitoring the bank accounts linked to the app by staking out the financial institution. Their mission: to identify the money mule withdrawing funds.
Meanwhile, Min-seo finds a moment of sisterly bonding over makeup as the night progresses. The following day, Jung-hwan arrives late again, his time divided by helping his wife film content for their burgeoning YouTube channel focused on children's entertainment. With three kids in tow, they're hopeful this venture will be their ticket to fame.
During the stakeout, Yu-bin finds himself caught in a whirlwind of personal attention from Jung-hwan, while Tan-Sik opens up about his anxieties over past mistakes. Jong-ryeok, eager to prove his worth, shares his street-smart tips. Yu-bin, doing his utmost to rally the team, faces an unexpected question from Min-seo: why he left his life in America to join them. Before Yu-bin can respond, a breakthrough occurs – the money mule emerges from the bank, signaling their stakeout has paid off. The tension melts into a moment of triumph, as they're saved by the bell.
The team swiftly pinpointed Hwang Young-hoon as the money mule, an integral member of the MZ gang entangled in cryptocurrency investment and loan fraud schemes. This notorious gang lurks in the shadows, grooming school bullies into their ranks and indoctrinating them into their nefarious ways. Yet, the gang's structure is splintered, fractured by age differences and a lack of cohesion among its members, many of whom remain strangers to one another.
Yu-bin, with precision and resolve, instructed her team to shadow Young-hoon, anticipating that he would lead them to his fellow gang-mates. (It bears mentioning that the gang is segmented based on the birth years of its members, fostering an air of disconnect.) As Young-hoon steered them towards a contingent of the 007 gang, the stakes rose.
During the tense moments of the apprehension, Tan-sik unexpectedly encountered Gang-min, an old acquaintance from school days. Despite the gravity of the situation, their reunion was tinged with warmth, albeit briefly, as Tan-sik promptly proceeded to arrest him. Gang-min, later under interrogation, disclosed that the gang communicates virtually, rendering him unable to provide substantial assistance. The shadowy puppeteer orchestrating this entire web of deceit remained elusive—a phantom known only as Mastar. His identity concealed, he issued commands solely through anonymous phone calls. His right-hand enforcer, Yoon, was equally as elusive, leaving even the authorities at a loss for leads on Mastar's true face.
Tan-sik, employing a clever ruse, coaxed Gang-min into granting access to his phone. Yu-bin, leveraging this intelligence, grilled Gang-min, uncovering the gang's clandestine stash hidden at Daeson farm. Jong-ryeok and Yu-bin, armed with this revelation, raced to the farm, shovel in hand, eager to uncover the ill-gotten gains. As Jong-ryeok's patience wore thin with Yu-bin's less-than-adequate digging prowess, a spat brewed between them. Fortunately, their discord was interrupted by the discovery of the buried treasure just in time.
The episode concludes on an intriguing note, with Yu-bin proposing a daring plan: to form a faux gang, using it as bait to lure Yoon out into the open.
