Good Boy- Episodes 3-4
Fake Brothers, Real Enemies, and a Serious Wake-Up Call
Episode 3 of Good Boy opens with a flashback to Han-na’s past. She's on the verge of making history in a shooting championship—until her long hair slips loose at the worst possible moment, breaking her focus and costing her the win. It’s a brief but telling glimpse into how things started unraveling for her long before the bullets and gangsters.
Back in the present, Dong-ju is on edge. He spots Min Ju-young at the customs office and causes a full-blown scene trying to confront him. It doesn’t go well—he ends up reported. Back at the station, Dong-ju tries to explain to his team that Ju-young is the one behind the hit-and-run, but with no hard evidence, it’s just noise. Jong-hyeon shows up, tension flares, and the two settle it the old-fashioned way—with a sparring match. Jong-hyeon wins, revealing he’s been training in Taekwondo since he was a kid. Surprise.
Then comes the gut punch. News breaks that Gyeong-il—arrested for the hit-and-run—has officially been charged. Dong-ju visits his mother, who still believes her son will be cleared. Inspired, Dong-ju follows a lead involving the car Ju-young drove the night of the crime.
Meanwhile, Jong-hyeon learns the case is being transferred to a new prosecutor: his own brother. The air between them is frosty, hinting at deep family fractures.
Dong-ju tries again to get Gyeong-il to come clean, but he won’t budge. Behind the scenes, Ju-young arranges for a prison guard to eliminate Gyeong-il. The next day, Dong-ju finds out Gyeong-il is dead. The death is staged as a suicide, but the guard’s watch left at the scene tells another story.
Dong-ju’s world shatters. Gyeong-il’s mother cuts him off completely. In a rage, he storms into Ju-young’s office and beats him to a pulp. Whatever deal they had? It’s over. Dong-ju’s playing by his own rules now.
Elsewhere, Han-na, who had just resigned, stumbles onto a clue. She finds a watch in her father’s belongings that matches Ju-young’s. Her dad, it turns out, was a police officer too. A pawn shop owner tells her the watch is from a limited-edition line tied to a major smuggler. Whether hers is real or not—still unknown.
Ju-young, meanwhile, is busy cleaning house. Furious at the guard’s sloppy hit job, he has him taken out. Now he suspects someone’s snooping through his files, and Han-na’s name rises to the top of his threat list.
Then comes the twist: Gyeong-il was never Dong-ju’s brother. He was an old competitor, injured during a sparring match with Dong-ju, and the "brother" label had just been a shared cover. That guilt Dong-ju’s been carrying? It's not about blood—it’s about responsibility.
Back at Han-na’s place, her life is unraveling too. A real estate agent shows up, and Han-na finds out her mom listed the house to pay off debt. Her mom had also distracted her during the championship years ago, busy with ads and appearances while Han-na struggled with a chronic illness. It all adds up.
After resigning from the force, Han-na collapses outside the station. Dong-ju catches her just in time. The moment is raw. Real.
Jong-hyeon later learns someone’s been digging into Han-na’s information. It’s clear now: Ju-young’s not done, and Han-na is next on the list.
In a quiet moment, Han-na returns Dong-ju’s pawned medal. Touched, he picks up the grueling task of copying a book by hand—part of a deal with Ju-young to keep him from pressing charges. But that’s not the plan anymore. Han-na retracts her resignation. Jong-hyeon officially joins the squad to keep her safe.
And then, Dong-ju takes the fight to Ju-young. He breaks into the customs office, stares him down, and says what we’ve all been waiting to hear:
“I’m coming for you.”
Fade to black. The game just changed.
Bait Cars, Broken Glass, and a Race to the Finish
Episode 4 of Good Boy picks up right after Dong-ju’s explosive showdown at Ju-yeong’s office—literally. After shattering the office window with a well-placed punch, Dong-ju officially declares war. But that glass doesn’t come cheap, and Man-sik’s got the invoice to prove it: a cool 3.3 million won. Cue the scolding.
Tension runs high in the team, especially between Dong-ju and Jong-hyeon. They're butting heads over tactics, turf, and—let’s be honest—Han-na. The group splits up to cover more ground, but Dong-ju can’t help himself and hijacks Han-na’s assignment just to keep her away from Jong-hyeon. It’s petty, it’s messy, and it slows things down. Jong-hyeon, undeterred, pulls an all-nighter reviewing CCTV footage and finds a clue: cigarette butts scattered around the docks.
Meanwhile, Han-na and Jae-hong chase down Oh Jong-gu—the guy Ju-yeong handed that bloodied watch to. They confront him, but the man stays cool and doesn’t crack. On her way back, Han-na is approached by Hwang Kyung-chul, who hands her a bombshell: her father had ties to a 2008 case involving a dead Russian mobster. Her dad led the investigation… and later died from a gunshot to the head. The case was ruled unsolved, but nothing about it feels random anymore.
Man-sik follows his own lead, tracing the watch back to a bald eagle-tattooed smuggler named Gwang-se. This guy connects the dots to the Golden Bunny gang and introduces a new player: Monkey, a car smuggler with a reputation. Monkey’s tied to Ju-yeong and protected by someone inside Insung Customs. If the team makes too much noise, the whole operation could vanish.
So they hatch a trap: bait Monkey with a car he can’t resist—specifically, the Commissioner’s car. With Gwang-se’s help, they steal the ride and prep the sting.
On stakeout, things get steamy—literally. Dong-ju and Han-na end up in a compromising moment, only to be caught by the rest of the team. Jong-hyeon is not amused.
The operation launches, and they storm the warehouse. But just when things heat up, Dae-yong and his squad swoop in and try to hijack the credit. Monkey escapes during the chaos… briefly. He’s found dead not long after, stabbed in the neck with a precision weapon. The scene screams professional hit, and forensics find cigarette butts again—just like the ones at the docks.
Back at the station, Man-sik faces the Commissioner’s wrath (and a thoroughly destroyed car). Despite the hiccups, the operation exposes the smuggling ring and leads to multiple arrests. Of course, Commissioner Cho grabs all the glory.
Jong-hyeon starts piecing the puzzle together: this isn’t just about smuggled cars. He suspects a wider network involving the Russian mafia and an armed Filipino drug ring. They also realize why Ju-yeong’s car was missing at the warehouse—Monkey needed someone inside to cover his tracks, which is how Lee Jin-su ended up dead. Jin-su discovered Ju-yeong’s scheme, and all the evidence he gathered? Burned.
Ju-yeong, now on edge, takes it out on the Section Chief, cornering him in the bathroom in a fit of rage.
Time’s ticking. The team heads to the docks and starts tearing through shipping containers. They’ve got until 7 p.m. to find the car—and Dong-ju buys them time by confronting Ju-yeong again. It works. The team locates the vehicle, but Ju-yeong’s already in escape mode.
A high-speed chase barrels through the city, ending at an intersection where Han-na plants herself dead in the road. Ju-yeong slams the brakes too late, and Dong-ju launches himself off a rooftop straight into the windshield, ending the chase with a dramatic crash.
Ju-yeong’s caught, flight missed, and—for now—his game is over. But with deeper connections, hidden players, and open wounds, this war is far from finished.
DramaZen's Opinion
Episodes 3 and 4 of Good Boy are absolute chaos—in the best way. The drama just keeps stacking betrayals, fistfights, and revelations, and I’m fully strapped in.
Episode 3 wrecked me emotionally. Gyeong-il’s death hit hard, especially after learning he wasn’t even Dong-ju’s real brother. That twist? Brutal. Dong-ju’s breakdown and explosive confrontation with Ju-yeong had me yelling at the screen. And Han-na’s backstory is finally opening up, giving her more depth and a personal stake in this mess. Plus, that medal moment? Subtle, but powerful.
Episode 4 shifts gears into full action-thriller mode. From bait cars and stakeouts to Dong-ju launching himself off a rooftop mid-chase, it was nonstop. Also, that love triangle tension? Deliciously awkward. And shoutout to Man-sik, who somehow manages to be both the comic relief and the stressed-out glue holding everyone together.
I’m loving how the show juggles dark secrets, messy relationships, and over-the-top action without losing steam. If Good Boy keeps this pace, we’re in for a wild ride.
