GOOD BOY, led by an all-star cast including Park Bo Gum, Kim So Hyun, Oh Jung Se, Lee Sang Yi, Heo Sung Tae, and Tae Won Seok, is one of the most buzzed-about K-dramas right now—and for good reason.
This high-energy series follows a crew of former sports medalists who trade podiums for police badges as they take on the criminal underworld.
Meet Yoon Dong-ju (Park Bo-gum), Ji Han-na (Kim So-hyun), Kim Jong-hyeon (Lee Sang-yi), Ko Man-sik (Heo Sung-tae), and Shin Jae-hong (Tae Won-seok)—a scrappy yet determined team of unconventional heroes who bring grit, heart, and serious athletic skills to the fight against crime.
Ready to dive in? Here’s a fast-paced rundown of episodes 1 through 8!
Meet the Medalist Misfits of GOOD BOY
Episode 1 kicks off by introducing five former sports champions who’ve swapped gold, silver, and bronze for badges—and life in law enforcement isn’t exactly a victory lap. Yoon Dong-ju, a hotheaded ex-boxing gold medalist, may punch first and think later, but his heart beats for justice. Ji Han-na, a sharpshooting queen with a gold medal to her name, bristles at being stuck behind a desk when she’s born to be in the field.
Kim Jong-hyeon, a silver medalist in fencing, makes waves—and enemies—by calling out corruption in the force. Then there’s Shin Jae-hong, a bronze discus thrower sidelined to traffic duty, and Ko Man-sik, a veteran wrestler with 14 years on the job who’s still fighting for respect.
Thrown together and thrust into action, this unlikely squad of underdog officers quickly finds themselves facing off against real criminals—and the adrenaline-pumping journey has only just begun.
A Team Assembled, A Dark Truth Uncovered
In Episode 2, the momentum picks up as the GOOD BOY squad puts their athletic instincts to work, outsmarting criminals with swift, strategic moves that grab the media’s attention. Riding this wave of success, Man-sik finally gets the green light to form the Special Criminal Investigation Team, bringing the medalist misfits together under one official unit.
Though the team is still finding its rhythm, they dive into their first major case: tracking down the culprits behind a mysterious break-in at Han-na’s home. But things take a personal turn when Dong-ju is blindsided by a shocking confession—his longtime friend and former boxing teammate, Lee Gyeong-il (played by Lee Jung-ha), claims responsibility for the hit-and-run case Dong-ju has been investigating.
Refusing to believe Gyeong-il is guilty, Dong-ju digs deeper and uncovers a chilling truth: the real puppet master is customs officer Min Ju-yeong (Oh Jung-se), who’s pulling the strings from the shadows. The game just got a whole lot more dangerous.
A Loss, A Clue, and a Spark
Episode 3 takes a darker turn as we dive into the backstories of the GOOD BOY squad—and see just how far Ju-yeong is willing to go to stay ahead. In a chilling move, Ju-yeong has Gyeong-il killed behind bars, silencing Dong-ju’s friend and cutting off a key witness.
Grief-stricken but undeterred, Dong-ju presses forward and stumbles upon a vital clue: a rare gold watch worn by Ju-yeong and his cronies—possibly the missing link in a sprawling conspiracy. The twist? Han-na recognizes the same watch from her late father’s case involving the Russian mafia.
As the two teammates connect over shared loss, a flicker of romance begins to emerge. In a powerful gesture, Han-na returns Dong-ju’s pawned gold medal, reigniting his drive to fight back. With emotions running high and his mission clear, Dong-ju squares off with Ju-yeong, vowing he won’t walk away unscathed.
High Stakes and Higher Leaps
In Episode 4, the GOOD BOY team sets their trap for a dangerous car smuggling ring that might be tied to the hit-and-run case. Their bait? The police commissioner’s brand-new ride. It’s a gutsy move that pays off, kind of. The team tracks the smugglers to a hidden workshop, but once their cover is blown, all hell breaks loose in a chaotic, all-out brawl. The smugglers’ own boss ends up dead in the mayhem, cutting off a major lead.
Still, there’s a breakthrough: solid evidence connects Ju-yeong to the smuggling ring. Sensing the walls closing in, he tries to skip town under the cover of a bogus overseas business trip. But the GOOD BOY team isn’t about to let him vanish.
As a tense pursuit unfolds, Dong-ju takes the chase to the rooftops—literally—vaulting across buildings in a jaw-dropping parkour sequence. Just as Ju-yeong’s escape seems certain, Dong-ju launches himself onto the getaway vehicle in a cinematic leap of pure grit, making it clear: he’s not letting Ju-yeong get away that easily.
Sparks, Setups, and a Mysterious New Player
Episode 5 opens with a sweet throwback to Dong-ju’s early athletic days, revealing the exact moment he first fell for Han-na during a quiet training run—a memory that still lingers. Flash forward to the present, and his bold rooftop leap pays off with Ju-yeong finally behind bars… for a moment. The team’s win is short-lived when the chief prosecutor steps in, pulling strings to set Ju-yeong free. Backed by power and influence, Ju-yeong seems untouchable—but the GOOD BOY squad isn’t backing down.
With Ju-yeong slipping through the cracks, the team shifts focus to a new threat: a synthetic drug connected to a shadowy figure known only as “Devil” (played by Lee Ho-jung). When Dong-ju saves her from a fire, Devil plays the part of the innocent victim—but behind her wide eyes lies something much darker. To complicate things further, she starts falling for her unknowing rescuer.
At the same time, Han-na begins to confront her own feelings. Unable to hold back any longer, she leans in and kisses Dong-ju, igniting not just romance, but a looming love triangle that promises plenty of emotional sparks ahead.
Cracks in the Armor, Clues in the Chaos
Episode 6 starts on a high for Dong-ju, still reeling from Han-na’s unexpected kiss—but his bliss is short-lived. Just as things seem to be looking up, he collapses and is rushed to the hospital, leaving his team shaken.
Meanwhile, Devil drops a lead that puts the team on the trail of the counterfeit drug ring’s true ringleader. Their successful arrest unearths an even uglier truth: Ju-yeong’s influence reaches the city’s mayor. Enraged by the mayor’s failure to keep the scandal contained, Ju-yeong ups the stakes—his men steal Man-sik’s gun, signaling that worse is yet to come.
A lucky break arrives when Man-sik’s daughter recognizes Devil from a recent flight and remembers her name from a boarding pass—Kim Yeon-ha. Han-na quickly confirms her identity using forensic evidence. While Man-sik is gripped by fear for his daughter’s safety, the team locates her safe and sound… for now.
But the gloves come off when Ju-yeong lashes out with cruel precision. In a brutal act of revenge, he targets Dong-ju’s heart yet again by shooting Gyeong-il’s mother. The war isn’t just personal anymore—it’s ruthless.
A Blow to the Team, a Breakthrough in Love
In Episode 7, Gyeong-il’s mother survives the shooting—but barely. Still unconscious, her condition fuels Dong-ju’s fury. Blinded by rage, he hunts down Ju-yeong and unleashes a brutal beatdown. But Ju-yeong, ever the manipulator, turns the tables by using footage of the assault to demand the disbandment of the GOOD BOY team.
With the squad’s future on the line, Man-sik fights to hold everyone together. Meanwhile, Dong-ju, now facing suspension and intense public scrutiny, shocks everyone by walking out of his disciplinary hearing. The twist? He had secretly cut a deal, allowing Ju-yeong to strike him in exchange for sparing the team.
As if that wasn’t enough, Dong-ju receives devastating news from his doctor: he may be suffering from punch-drunk syndrome, a degenerative condition caused by years of head trauma in the ring. Still, he refuses to give up the fight against corruption or fate.
But amid the chaos, something beautiful takes root. Han-na, moved by Dong-ju’s strength and sacrifice, shares a tender, genuine kiss with him, marking the beginning of their official romance and reminding us that even in darkness, hope can bloom.
Tunnel Trap and a Tense Cliffhanger
Episode 8 plunges the GOOD BOY team deeper into danger as their undercover mission intensifies. While investigating Ju-yeong’s criminal web, they discover that the raw materials behind Devil’s deadly drug operation are stashed at a port. Posing as pest control workers, Dong-ju, Han-na, and Jong-hyeon infiltrate the site—only to find that Devil and her gang have the same target.
Chaos brews as both sides converge. Although Devil manages to slip through their fingers yet again, the GOOD BOY team successfully seizes the container, marking a major win—or so they think.
Ju-yeong strikes back hard. He stages a calculated ambush during the transport of the container through a tunnel en route to the evidence storage facility. Suddenly, the team is under attack from all sides—ambushed with brutal force, surrounded by wrecked vehicles, fire, and bone-crushing brawls.
The episode ends with a white-knuckle cliffhanger as the dust hasn’t settled—and the fate of the team hangs in the balance. One thing’s for sure: Ju-yeong is far from finished, and the storm is only getting stronger.
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