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What is the plot?
Gi-cheul forces Jun-mo, who is undercover as Seung-ho, to execute Manager Cho, a man he has captured. Jun-mo hesitates and repeatedly fails to pull the trigger, visibly struggling with the act. Gi-cheul grows increasingly angry at Jun-mo's inability to carry out the order, and the other gang members mock Jun-mo, calling him useless. Seo Jong-ryul, the gang's knife expert, steps in and kills Manager Cho himself, ending the standoff.
After the killing, Gi-cheul contacts his informant to investigate Seung-ho's background. The informant reports that there are no official records confirming Seung-ho's past, but he does have a criminal record for violating the Narcotics Control Act. Jung-bae and Hee-sung privately express their suspicions to Gi-cheul, suggesting that Seung-ho might be a police spy. Jung-bae specifically raises concerns about Eui-jeong's connection to Seung-ho, believing she may have hired him to infiltrate the gang. Gi-cheul dismisses the idea, attributing Seung-ho's familiarity with Eui-jeong to his criminal history, but Jung-bae remains troubled, especially after recalling the police flashlight incident and the suspicious timing of Seung-ho's arrival during Gi-cheul's earlier attack.
Gi-cheul, Seo, Jun-mo, Jung-bae, and Hee-sung hold a private meeting to discuss important matters. Gi-cheul informs them that Chinese associates are coming to Seoul and instructs them to prepare something special for the visit. Initially, Jung-bae is assigned to meet the Chinese, but the plan changes when Gi-cheul receives a call from Eui-jeong asking to meet. Gi-cheul decides to meet her instead, and Jun-mo is chosen to take Jung-bae's place in dealing with the Chinese visitors.
Seo and Jun-mo privately tell Gi-cheul that they suspect Jung-bae may have been involved in the ambush on Gi-cheul. Gi-cheul orders Seo to investigate thoroughly and assigns Jun-mo to meet the Chinese. Meanwhile, Seo pretends to be a police officer and visits the leader of the rival gang who attacked Gi-cheul, now hospitalized. Seo confirms that Jung-bae had no involvement in the attack and reports this back to Gi-cheul. Seo then kills the hospitalized gang leader to eliminate any further threats.
Gi-cheul and Jung-bae have a private drink together. Jung-bae asks Gi-cheul if his meeting with Eui-jeong was related to their business. Gi-cheul does not give a direct answer but warns Jung-bae that some things are dangerous, yet necessary. Jung-bae expresses concern about Eui-jeong's status as a police official.
Jun-mo returns home and has dinner with Eui-jeong. They catch up, but tension lingers between them due to their complicated past and current roles. Jun-mo is visibly conflicted about his mission and his relationship with Eui-jeong.
Later, Jun-mo is unexpectedly invited to a fishing trip with Gi-cheul. On their way to the trip, their car is ambushed by a group of vehicles attempting to force them off the road. When the car crashes, the assailants try to attack them. Kang Geon is revealed to be behind the ambush. During the struggle, Jun-mo manages to grab a gun and points it at one of the attackers, holding his ground as the confrontation escalates.
Seo arrives and helps Gi-cheul and Jun-mo fight off the attackers. Jun-mo is severely injured in the fight and is rushed to the hospital. Gi-cheul realizes there must be a traitor within his gang, suspecting Hee-sung and Jung-bae of betrayal. Because Jun-mo has now saved Gi-cheul's life twice at great personal risk, Gi-cheul feels compelled to trust him. Gi-cheul also trusts Seo and instructs him to investigate the alibis of the gang members who knew his location that night.
Jun-mo, while recovering, reflects on his actions and the toll his undercover mission is taking on his personal life. He calls his wife and apologizes for causing her pain and for not being able to visit her mother before her death. The episode ends with Jun-mo grappling with the emotional and moral weight of his choices, while Gi-cheul remains vigilant about the growing threats from within and outside his organization.
What is the ending?
At the end of The Worst of Evil, Season 1, Episode 4, Jun-mo manages to grab a gun from the glovebox during an ambush and holds it to the head of one of the attackers, signaling a turning point in his role within the gang.
Expanding on the ending scene by scene:
The episode builds tension as Jun-mo, under pressure from Gi-cheul, struggles with the task of killing a captured man, unable to pull the trigger despite the gang leader's insistence. This failure frustrates Gi-cheul and leads to mockery from his associates, while Seo Jong-ryul, the knifer, kills Manager Cho, escalating the violence.
Gi-cheul investigates Seung-ho's background, discovering a criminal record but no verifiable past, and is warned by Jung-bae and Hee-sung that Seung-ho might be a police spy. Jung-bae suspects Eui-jeong hired Seung-ho to expose the gang, but Gi-cheul dismisses this, focusing instead on Seung-ho's criminal history.
Meanwhile, tensions rise among the gangs with Kang Geon proposing war against Gi-cheul, and the absence of elders creates instability. Jun-mo is unexpectedly invited to a fishing trip, which is a cover for smuggling activities.
On the way, Jun-mo and Gi-cheul's group are ambushed by cars trying to force a crash. During the chaos, Jun-mo fights for survival and seizes a gun from the glovebox. In a decisive moment, he holds the gun to the head of one of the attackers, demonstrating his growing resolve and shifting his position within the gang hierarchy.
This ending scene highlights Jun-mo's internal struggle and his gradual transformation from a hesitant participant to someone willing to take lethal action. It also sets up his emerging role as Gi-cheul's new right-hand man, especially as Jung-bae is revealed to be the traitor who betrayed Gi-cheul.
Regarding the fate of main characters at this point:
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Jun-mo survives the ambush and gains Gi-cheul's trust, marking his rise in the gang.
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Gi-cheul remains the gang leader but faces betrayal and increasing threats from rival gangs.
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Seo Jong-ryul continues as a loyal enforcer, involved in violent confrontations.
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Jung-bae is exposed as a traitor within the gang.
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Eui-jeong's involvement remains ambiguous but is central to the unfolding conflict.
The episode ends on a tense note with Jun-mo's decisive action, foreshadowing further developments in the gang's power dynamics and the personal conflicts among the characters.
Is there a post-credit scene?
There is no evidence in the available sources that The Worst of Evil, Season 1, Episode 4 (2023) contains a post-credit scene. The episode's plot, as described in detailed recaps, concludes with Jun-mo (undercover as Seung-ho) being pressured by Gi-cheul to kill a captured man, failing to do so, and then being mocked by the gang. Meanwhile, suspicions about Jun-mo's true identity grow among Gi-cheul's inner circle, and the episode ends with Jun-mo apologizing to his wife over the phone for the pain he's caused her, revealing his emotional turmoil and guilt.
The only post-credit scene referenced in available materials occurs at the very end of the series, after Episode 12, not Episode 4. This final post-credit scene shows Gi-cheul and Jun-mo walking together in Gangnam, both dressed as gangsters and smoking, but this is unrelated to Episode 4.
No sources mention any additional scenes, teasers, or narrative content after the credits of Episode 4. The episode's narrative arc is fully contained within its main runtime, with no indication of supplemental material designed to be viewed after the credits roll.
Why does Gi-cheul force Jun-mo to kill Manager Cho, and what happens when Jun-mo fails?
Gi-cheul forces Jun-mo to kill Manager Cho as a test of loyalty and ruthlessness, essential qualities for survival in the gang. Jun-mo, undercover as Seung-ho, is unable to pull the trigger despite repeated pressure from Gi-cheul and mockery from the gang members. This failure infuriates Gi-cheul and makes the gang question Jun-mo's reliability. Ultimately, Seo Jong-ryul, the gang's knife expert, steps in and kills Manager Cho himself, further humiliating Jun-mo in front of the group.
What does Gi-cheul learn about Seung-ho's background, and how does it affect his suspicions?
Gi-cheul investigates Seung-ho's background through his informant and discovers that there are no official records to verify Seung-ho's past, but he does find a criminal record for violating the Narcotics Control Act. This information fuels suspicion among Gi-cheul's inner circle, especially Jung-bae, who begins to suspect Seung-ho might be a police spy. However, Gi-cheul initially dismisses these concerns, attributing Seung-ho's familiarity with Eui-jeong to coincidence and his criminal past.
What role does Eui-jeong play in Jun-mo's undercover mission, and how does her involvement affect the dynamics between the characters?
Eui-jeong, Jun-mo's wife and Gi-cheul's first love, is brought in by the police team to help Jun-mo in his undercover mission. She meets Gi-cheul at a restaurant, a move that displeases Jun-mo, who is both concerned for her safety and troubled by her past connection with Gi-cheul. Her involvement creates a complicated love triangle and increases tension, as Jun-mo must navigate his feelings while maintaining his cover, and Gi-cheul is reminded of his unresolved feelings for her.
Who is suspected of betraying Gi-cheul, and what evidence leads to these suspicions?
Jung-bae is suspected of betraying Gi-cheul, primarily because he is troubled by the police flashlight found at the scene and refuses to believe that Seung-ho was simply at the right place at the right time. His behavior and doubts about Seung-ho's presence raise red flags among Gi-cheul and his associates. Seo Jong-ryul is tasked with investigating the alibis of those who knew Gi-cheul's location, and while initial suspicions fall on Jung-bae, Seo later confirms that Jung-bae had nothing to do with the ambush, though the underlying tension remains.
What happens during the fishing trip ambush, and how does Jun-mo respond to the attack?
During the fishing trip, Gi-cheul and Jun-mo are ambushed by a group of cars attempting to force them off the road. When the cars succeed in causing a crash, the attackers try to get into their vehicle. Kang Geon is revealed to be behind the attack. In the ensuing chaos, Jun-mo manages to grab a gun and points it at one of the assailants, demonstrating his willingness to protect Gi-cheul and proving his loyalty in a life-or-death situation.
Is this family friendly?
The Worst of Evil, Season 1, Episode 4 is not family friendly. The episode contains intense scenes of violence, including gun and knife fights, as well as depictions of criminal activity and drug-related themes. There are moments of strong emotional tension, threats, and physical confrontations that may be disturbing for children or sensitive viewers. The atmosphere is dark and suspenseful, with a gritty, noir tone throughout. The show also features strong language and scenes set in seedy environments such as nightclubs and dimly lit alleys. These elements make it unsuitable for younger audiences or those who are easily upset by crime and violence.