Star Trek: Strange New Worlds Season 4 Episode 4 Recap: Klingon Nightmare

Una Chin-Riley finally gets her first mission as a newly promoted commander, and Star Trek wastes absolutely no time making sure it is anything but easy. What begins as a seemingly straightforward recovery mission quickly becomes a dangerous trip into Klingon territory, complete with mistaken identities, an occupied planet, a suspicious Federation probe and enough tension to make Una’s first command assignment one she definitely won’t forget.
The episode opens with Una recording her First Officer’s Log on Stardate 2122.4. A Federation probe called the Angelo-1 has overheated, shut down and drifted across the demarcation line into Klingon territory. Starfleet wants it back, but sending the Enterprise would risk detection and potentially reignite a very cold war. Pike instead puts his newly promoted commander in charge of retrieving it.
Una pilots the shuttle with Lieutenant Uhura aboard to reset the probe’s systems and Dr. M’Benga there to monitor the effects of radiation from the Mat’Aaran star. The radiation is also responsible for one of the episode’s most interesting creative choices: everything appears in black and white because of how humans perceive color under these conditions. Tritanium from the shuttle’s blast shields offers them some protection, but visually, we are in an entirely different world this week.
Uhura successfully resets Angelo-1, allowing them to propel the probe back toward the Enterprise. M’Benga also takes a moment to congratulate Una on her promotion, already predicting that captain could be the next step in her future. It is a nice moment, but naturally, nobody on Star Trek gets to celebrate for very long.
A proximity alert suddenly sounds, and they realize they are not alone. A Klingon D-7 ship has blocked their route back to the Enterprise, forcing Una to make an evasive maneuver into the atmosphere of Mat’Aar 12. Pike confirms that the Enterprise has recovered the probe and orders Una to wait out the Klingons until another opportunity opens for them to return. Most importantly, they need to stay out of sight because the Federation is not supposed to be anywhere near this planet.
That becomes considerably harder when their shuttle passes through an electromagnetic atmospheric barrier detection system. M’Benga recognizes that the technology is even more advanced than what existed during the old Klingon War. Uhura’s scanners never detected it because, technically, there was nothing unusual to scan. Atmospheric electricity is naturally present, making the security system extremely difficult to spot.
Once they get closer to the surface, the situation gets worse. Mat’Aar is heavily populated, with villages surrounding the city and a significant Klingon presence mixed among the native population. Una quickly realizes there is nowhere they can safely hide. They manage to land beneath the detection system, but their force field still triggers a momentary alert. Whoever is watching knows somebody has arrived. They just don’t know who.
M’Benga points out that staying inside the shuttle would make them sitting ducks, so he synthesizes clothing that will allow them to blend in with the local population. Una, Uhura and M’Benga head into the city, and this is where the episode really begins leaning into its 1930s and 1940s aesthetic.
As they walk through the populated area, something immediately feels strange. Despite supposedly being on a Klingon-occupied planet, they don’t actually see any Klingons. Instead, a massive Klingon image is projected into the sky, ordering residents to have their identification ready and warning them of the consequences for failing to comply. The message ends with the unsettling reminder that they all “succeed together.”
M’Benga realizes the Klingons are using local collaborators to help enforce their rule, and the group attempts to keep moving. Before they can get far, however, a stranger named Roman stops Una and calls her “Nevette.” Apparently, whoever Nevette is, she has been missing for two days and everyone assumed she was dead. Una immediately plays along.
Roman asks about Uhura and M’Benga, and M’Benga introduces himself as Joseph Ruick while claiming they are new recruits. When Roman notices they are missing the appropriate armbands, Uhura explains that they have been undercover. Roman knows nothing about an undercover mission, but “Nevette” quickly shuts him down by telling him it wasn’t for him to know. Whew, Una understood the assignment.
Roman reveals that an unidentified shuttle recently slipped through the detection system, which is obviously not information the Starfleet officers wanted to hear. He then brings them back to headquarters, an establishment that looks like an old 1940s nightclub. Waiting inside is a badly beaten woman who Roman identifies as a traitor and member of the resistance.
They haven’t been able to get information from her, so Roman expects Nevette to handle it.
While Una deals with her unexpected new identity, Uhura and M’Benga watch from the bar. Uhura is understandably worried that Una could expose who they really are, but M’Benga tells her to trust the commander. As he points out, this is not Una’s first time pretending to be someone she isn’t.
That line carries a little extra weight considering Una’s history, and M’Benga uses the situation to teach Uhura how to create a believable false identity of her own. Uhura may be an incredibly talented communications officer, but undercover work is clearly a different kind of challenge.
Meanwhile, aboard the Enterprise, La’an and Spock begin examining the recovered Angelo-1 probe to determine whether the Klingons tampered with it. Spock initially finds no foreign substances or obvious problems with its internal systems, but La’an notices a dislodged data chip. When she accesses it, she discovers the probe’s recordings were wiped after Angelo-1 was brought aboard the Enterprise. That changes everything.
La’an believes someone tampered with the probe, and the only opportunity would have been while it was being transported aboard. She explains to Pike that an object could have been isolated while inside the transporter buffer. Pike trusts his security officer’s instincts and essentially tells her that if something smells funny, she needs to sniff it out. So La’an and Spock go sniffing.
Back on Mat’Aar 12, Una’s already complicated mission becomes even more dangerous with the arrival of Commander Kor from the Klingon High Command. With the risk factors rapidly changing, Una decides their original orders need to change as well. Her priority becomes getting everyone back to the shuttle and waiting for another opportunity to rendezvous with the Enterprise.
Unfortunately, Uhura is arrested at a newly established checkpoint when she is unable to provide identification. Una, meanwhile, continues being mistaken for Nevette, who turns out to be far more important to the resistance than they initially realized.
From there, the episode raises one question after another. Can Una free Uhura without exposing who they really are? What intelligence does Uhura gather while in custody? Where is the real Nevette, and what exactly was she supposed to do? Roman’s fate also becomes part of the increasingly dangerous situation, while La’an continues investigating what happened to Angelo-1 aboard the Enterprise.
There is also the matter of Nurse Chapel and whether she has any connection to the probe tampering. More importantly, Una’s choices on Mat’Aar raise an enormous Starfleet question: did she violate the Prime Directive?
This was an incredibly well-done episode, and the black-and-white presentation was much more than a visual gimmick. Combined with the camera angles, lighting and 1930s and 1940s-inspired costumes, it gave the entire story an old-school wartime thriller feel that perfectly matched the Klingon occupation of Mat’Aar.
The two intertwining stories also worked extremely well together. While Una, Uhura and M’Benga were trapped on an occupied planet and desperately trying to maintain their cover, La’an and Spock were uncovering a mystery aboard the Enterprise that suggested the danger might be much closer to home than anyone realized. The writing, directing and production kept both sides of the story mysterious, dangerous and captivating without allowing either plot to overshadow the other.
Uhura was especially impressive this week, while M’Benga once again proved how valuable his experience can be when a mission goes sideways. Una was given a real test during her first assignment as commander, and the episode allowed her to show exactly why Pike trusts her. Commander Kor was also a strong addition to the story, bringing a genuinely threatening presence whenever he entered the picture, while Pike continues to be Pike. What else needs to be said?
Between the emotional stakes, espionage elements, stunning black-and-white presentation and Una being thrown directly into the deep end on her first mission as commander, this episode delivered one of the season’s most captivating stories.
4.9 out of 5 stars.
What did you think?
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