Good Boy – K-drama Episode 4 Recap & Review

The Review Geek

10-06-2025

Monkey See, Monkey Do
After the tense meeting with Ju-yeong at the office, where Dong-ju punched that window and shattered it, episode 4 of Good Boy begins with the battle lines drawn between these two formidable foes.
This broken glass though sees Man-sik reprimand his junior, especially when they get an expensive repair invoice through for 3.3 million won.
There's inevitably still bad blood between Jong-hyeon and Dong-ju here, who bicker over the best way of handling the their case (and who's trying to win over Han-na's affection). As a result, the group are split in half to cover more ground.
Dong-ju gets jealous when Han-na is paired with Jong-hyeon though so he decides to jump in her place instead. They don't get far in their search, mostly due to the pair clashing, but Jong-hyeon continues searching into the night, checking over the CCTV cameras in the area and noticing a lot of cigarette butts on the ground.
Han-na and Jae-hong track down the slippery Oh Jong-gu, the man who was given the bloodied watch by Ju-yeong last episode. They ask outright whether he's involved in Gyeong-il's death but he keeps a cool head and doesn't slip.
On the way back, Han-na is picked up by Hwang Kyung-chul, who has some info for her. He brings up how, back in 2008, a Russian mafia member was shot dead and her father was in charge of the crime scene. He has files for her about the whole endeavour, and hands them over for her here. Now, the suspected cause of death for her father stems from a gunshot to the head, suspected to be a mafia member, but it was closed as unsolved, despite the obvious links.
Man-sik does his own digging into the watch with the pawnshop and this links to Gwang-se, a man sporting a bald eagle tattoo. He used to be well-known for smuggling cars and has ties to the Golden Bunny gang as well. He eventually reveals that there's someone called Monkey, who's the best in the country at smuggling cars.
There's a guy at Insung Customs that covers for him too, which directly links in to Ju-yeong. Monkey still has the car, and the team need to tread carefully here. If they talk too loud or make it known at the station what they're doing, Ju-yeong could very easily hide everything before they bust the operation.
As a result, the group decide to use a bait car to lure Monkey in. Unfortunately, the one he's likely to go for is the Commissioner's. With Gwang-se's help, they manage to get the car and the plan is set to go ahead.
On the way, Dong-ju and Han-na end up in a rather compromising position during their stake-out but it doesn't take long for them to re-join the others, much to Jong-hyun's annoyance.
The operation goes ahead, and they race into the warehouse. Unfortunately the team are undermined by Dae-yong and his group, who sweep in and try to take all the credit for busting Monkey and his smuggling gig.
Despite a big skirmish, Monkey manages to get away. However, he's found by the side of the road not long after, having been stabbed in the neck with a screw-like knife from the perp. It seems to indicate that this guy is a professional killer and covering his tracks. Forensics also uncover cigarette butts, not dissimilar to the ones found on the dock with the CCTV cameras, but it leaves them at another dead-end.
Meanwhile, Man-sik also has the unenviable task of facing the Commissioner's wrath, especially when he finds out about the trashed car. Despite all of this though, the operation exposes the scam, and a fair few goons are arrested. Naturally, Commissioner Cho takes all the credit for this!
Jong-hyyun theorizes with the group afterwards that this entire ordeal is connected to both the Russian mafia and a drug operation run by an armed Filipino group. Unfortunately, they didn't find Ju-yeong's car at the warehouse. However, they do realize that Monkey needed an insider to fudge the paperwork, explaining why Lee Jin-su was killed. He came across Ju-yeong's scheme and was killed for it. All the documents he uncovered were also burned too, which we saw earlier on with Ju-yeong .
Ju-yeong is pissed and he takes his anger out on the Section Chief when he confronts him in the bathroom.
Time is very much of the essence here, and in order to find the goods, the group head to the dock and look through the shipping containers one by one. They only have until 7pm to find the car though and while Dong-ju confronts Ju-yeong as a way of giving the team some time, they actually track down the car.
A chase inevitably ensues, and the team work together to catch Ju-yeong at the intersection as he twists and turns his way through the streets. Han-na stands right in the middle of the road to try and stop him. Ju-young sees this and decides to stop him before he hits her, jumping off the roof and slamming into the windshield.
Ju-yeong is captured, and very likely going to miss his flight, but Dong=ju has at least stopped him for the time being.
The Episode Review
So Good Boy returns with another good episode, tis time tightening the screw around capturing Ju-young, all whilst building the team comradeship. The show has done well to make each of the team members unique in their own way, and the previous episodes have, of course, dived into their backstories to explain why they're part of this group.
This works well to give them all a unique reason for being here, along with their ties to the Olympic games, and this chapter enhances that by having the group split up on their individual investigations. I'd still like to see a bit more of Jae-hong though, who feels like he's a bit of an oddball, but the investigation into Ju-Yeong and his ties to Gyeong-il's death have certainly been intriguing and overshadow any blemishes with this one.
Now that we know there are ties to both the Russian mafia and the Filipino gangs, it raises the stakes dramatically. We do get confirmation here though that the Section Chief isn't involved but I have a feeling there could be another official aligned with Ju-yeong to make things run a bit smoother with this operation.
It's clear Ju-yeong is not going to be detained for long though, and it sets everything up for a dramatic double bill to come next week.
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