"Series Acclimation Mil" is the fifth episode of the first season of the American science fiction teen drama television series Star Trek: Starfleet Academy. The episode was written by Kirsten Beyer and series co-producer Tawny Newsome, and directed by Larry Teng. Part of Alex Kurtzman's expanded Star Trek Universe, the series takes place in the 32nd century, the far-future time period that was introduced in Star Trek: Discovery and follows the first new class of Starfleet cadets in over a century as they come of age and train to be officers. The episode was released on Paramount+ on February 5, 2026. In the episode, SAM sets out to prove herself as an emissary for her people by solving an ancient Starfleet mystery, discovering new parts of herself in the process. Elsewhere, Nahla attempts to garner the trust of Commander Kelrec.
The episode received acclaim from critics, who praised the unique structure and tone, the links to Star Trek: Deep Space Nine, the writing, and the performances, particularly that of Kerrice Brooks as SAM.
Plot SAM (Kerrice Brooks), Starfleet Academy's sole photonic cadet, explains that she was created as an emissary to observe organics and report back to her people on Kasq so they can determine whether or not it is safe for them to integrate with organic society. Her creators instruct her to ignore what they perceive to be trivial things like music, and to enrol in a class called "Confronting the Unexplainable" to further her knowledge, but Professor Illa (Tawny Newsome) informs her that it is too late for her to join. She becomes fascinated by the life of Benjamin Sisko, a human Starfleet captain from centuries ago who became the Emissary of the Prophets, the gods worshiped by the Bajoran people. Sisko's ultimate fate is unknown, and SAM decides to prove herself by finding out what happened to him. SAM attends a meeting of Bajoran students, but offends them by implying that their belief in Sisko is unproveable nonsense. The incident lands her at Chancellor Ake's office; Ake explains to her how revered Sisko is amongst the Bajorans and encourages SAM to keep asking questions.
Ake confronts Kelrec, the Chancellor of the War College when the Academy begins to lose power, and finds out he is trying to prepare for a visit from a dignitary from Alpherat. Attempting to make amends for their previous animosity, Ake recruits The Doctor (Robert Picardo) and Jett Reno (Tig Notaro) to teach him traditional Alpherati customs and foster trust between them. Things initially go well, but Kelrec becomes offended when he begins to think the others aren't taking things seriously, and reveals that he has been harbouring resentment towards Ake for having abandoned Starfleet 15 years earlier. The two later reconcile when she provides additional context and commits to trying to get along, moving forward.
Exploring a museum dedicated to Sisko, SAM finds recordings from his son Jake (Cirroc Lofton) which focus less on his father's work as an emissary and more on his character. SAM's Maker (Chiwetel Ejiofor) informs her that if she does not find answers within seven days, they will force her to return to Kasq forever, so when Darem (George Hawkins) and Genesis (Bella Shepard) suggest going to a local bar where Benjamin infamously got into a fight as a cadet, she agrees and allows Caleb (Sandro Rosta) to alter her programming and make her drunk. In this state, she encourages Jay-Den (Karim Diané) to flirt with Kyle (Dale Whibley) and Caleb to stop avoiding Tarima (Zoë Steiner), resulting in the two sharing a kiss. When cadets from the War College who are bitter about losing the prank war against the Academy start causing trouble, SAM punches one of them and the group are kicked out. SAM later admits her failure to Professor Illa, who hands her the only copy of Jake's unpublished book about his father. Jake then appears to SAM and shares that even though his father embraced being an emissary, he did it his way, also embracing family, giving SAM the courage to believe she can also represent Kasq without having to sacrifice her own identity. Illa then tells SAM she can enrol in her class the following year, and reveals that she is the current host of the symbiont Dax, one of whose previous hosts was a mentor to Benjamin Sisko. SAM reports back to her Maker that she will complete her mission in her own way, and continues her life at the Academy with a renewed sense of self.
Production
Writing
The episode was written by Kirsten Beyer and series co-producer Tawny Newsome, marking the first writing credit on the show for both. Newsome is best known for portraying Beckett Mariner in the animated series Star Trek: Lower Decks and appearing once in live action in "Those Old Scientists", an episode of the second season of Star Trek: Strange New Worlds. After being impressed by her improvisations during the filming of the latter episode, Star Trek executive producer Alex Kurtzman hired her as a writer for Starfleet Academy.
Describing herself as a "die-hard fan" of Star Trek: Deep Space Nine, Newsome expressed her "singular focus" when she entered the writer's room was to reference the show in a "meaningful way" on Starfleet Academy. "Series Acclimation Mil" is the first episode of television that Newsome had written and that she was "pretty adamant" that her episode be an homage to Benjamin and Jake Sisko, feeling that modern Star Trek had not given the characters their due despite them and Deep Space Nine as a whole being such significant parts of the franchise's canon. Newsome called the episode a "gargantuan feat" to get made, and worked closely with co-writer Beyer, whom she described as a "fierce advocate", showrunner Noga Landau, executive producers Alex Kurtzman and Aaron Baiers, and Jake's actor Cirroc Lofton to realise her vision. Landau stated that she, Newsome, and Beyer, who was co-creator of Star Trek: Picard, were in agreement about making a "love letter" episode to Deep Space Nine and the Sisko family, but that they "worked hard" to ensure it also fit in with the tone and theme of Starfleet Academy.
Regarding the decision to leave Benjamin Sisko's ultimate fate ambiguous, series co-showrunners Noga Landau and Alex Kurtzman felt it was important not to interfere with Deep Space Nine'''s conclusion, with Kurtzman explaining that, "if we had given you a definitive answer, no matter what answer we'd given, I think you would have been really disappointed because it would have broken what the point of that show was and what the point of that ending was about", adding that he believed the reveals of the episode would give fans a "newer understanding" of the ending of that series.
Kerrice Brooks, who plays SAM, explained that she drew on her own experiences with loss to help her emotionally connect to her character's arc in the episode, stating, "the way that Sisko died was unexplainable. For me, when my granddad died, it felt very unexplainable, too", adding that on the set, it felt like "like [she] was talking to two people at the same time that were merging into one. It felt like everything was collapsing in and colliding." She also expressed that some of SAM's personality traits or behaviours, such as her insulting of the Bajorans, comes from a place of "naïve arrogance" and a lack of total understanding of organic culture and society. Of SAM's connection to Benjamin Sisko and his influence on her development despite the two character having never met, she explained, "she knew so much about Sisko and she knew what he liked, what he didn’t like. He liked tomatoes, he ate gumbo, Creole kitchen, baseball, Jake. She knew Bajor. She knew so much about him, but also at the same time, felt so cut. There was a cut cord somehow and for whatever reason. And so it felt like the entire time Sam’s like grasping in the dark, trying to find and feel her way to maybe what her destiny could look like.
Filming The episode includes scenes featuring SAM breaking the fourth wall and speaking directly to the camera. Newsome stated that the unique structure and break from Starfleet Academy's usual format was proposed by Kurtzman, who felt it was a "special episode" that should look and feel different due to the focus on SAM, a non-organic character. Of this, Newsome stated, "I think we were just so inspired by the fact that we don’t know much about Kasq yet, and so we got to be the architects of this new species. And the fact that they process information so differently gave us the liberty to process the information differently for the medium, for the audience. And it just also spoke to my tendencies as a writer, which are a little bit outside of this genre. This is my first time writing narrative TV. I’ve written a lot of sketch and I primarily only do comedy. So while this episode has incredible heart – largely thanks to Kirsten — the format break was more suited to my style of writing. And the only person in my life who’s read nearly everything I’ve written is Alex Kurtzman, so I think that was intentional on his part." Newsome noted that the original draft of the episode was 72 pages long and included a lot of the on-screen graphics that made it into the final product, and that she pitched many comedic suggestions to director Larry Teng during filming to give to the background actors to give the impression that characters are "living full lives" despite them not being the focal point of the show.
Kerrice Brooks, who portrays SAM, expressed that the main goal of the episode was to honor Avery Brooks and his character, the first black captain in Star Trek history stating, "we just wanted to honor Avery. I hope we did." Of filming, she explained, "It was really immersive. I want to say some of [the props] on set were the original props from Deep Space Nine. I know that the uniform was. You could literally feel the weight in the room as walked through the set during rehearsal. I don't know if it was the lighting or what, but you just felt how important all of it was. I felt like I didn't have to act too much in the scene, what I needed — it was just there." Brooks enjoyed breaking the fourth wall during the episode, noting that excerpts of the opening scene were part of her original audition for the show. She felt that her character arc during the episode was "a very rewarding experience", and felt it helped bring elements of Sisko's own character arcs on Deep Space Nine "full circle". Discussing the scenes between SAM and Illa Dax, Brooks explained, "in the writers room for the show, Tawny created and developed [SAM]. Shooting that scene, I forget the day we shot that, but we mostly shot the episode in sequential order. And that scene was pretty emotional, acting-wise. Especially with Tawny being such a big Deep Space Nine fan." She also called her scenes with Cirroc Lofton as a "special" experience, and that his presence made her "step up [her] game".
Casting
Main cast members Oded Fehr and Gina Yashere do not appear and are not credited. The episode features recurring cast members Raoul Bhaneja as Commander Kelrec, the Chancellor of the War College, Romeo Carera as Academy cadet Ocam Sadal, Alexander Eling, Cecilia Lee, and Dale Whibley as War College cadets B'avi, Dzolo, and Kyle Djokovic, and the voice of Stephen Colbert as the Digital Dean of Starfleet Academy. Newsome makes a guest appearance as Professor Illa Dax, while Chiwetel Ejiofor voices SAM's Maker. RuPaul's Drag Race competitor Jackie Cox cameos as a bartender at the Academy bar. Newsome noted that she did not initially intend to appear in the episode herself, but that Landau suggested it once they had confirmed that the "shepherd" of the story would be a host of the Dax symbiont, which appeared in Deep Space Nine played by various actors.