After "Doctor Bashir, I Presume," in which it is revealed that Doctor Bashir's parents had subjected him to illegal genetic engineering—which usually disqualifies people from from serving in Starfleet—Bashir no longer has to hide his genetically engineered status. This makes it possible for him to openly research treating those who have been disabled by genetic engineering in some way. The doctor has four such victims brought to Deep Space Nine to study directly. The 'Jack Pack,' however, prove to be a disruptive presence on the station.After preventing a ploy that would have been a significant strategic victory for the Dominion, however, Starfleet engages their services as analysts. They quickly prove their value and gain the respect of Starfleet Command...until the four decide that there's no way for the Federation to win the Dominion War, and advise the Federation to surrender.When Starfleet refuses, the 'Jack Pack' undertake a plan to bring the war to an early end by handing vital information over to the Dominion.
- Adult Children: The members of the "Jack Pack" are each profoundly immature in their own way.
- A God Am I: Downplayed slightly during an argument between Bashir and Jack:Bashir: It's not our place to decide who lives and who dies! We're not gods!
Jack: Maybe not, but we're the next best thing.
- Anything That Moves: Lauren, according to Jack. Except for Jack.
- Artistic License – Statistics: If Bashir and the genetically engineered quartet really are super-geniuses, they should know right from the start that they can't make accurate predictions on the outcome of the Federation/Dominion war based on the limited data they have. But in order for the aesop to work, they need to be ignorant of this at first, so that they can all learn a lesson by the end of the episode. The most obvious is that they didn't even consider that the Dominion might be able to do the same math and alter their plans accordingly (which the audience knows they did several episodes earlier).
- Awesomeness by Analysis: The "Jack Pack" are able to utterly dismantle the Dominion's negotiation efforts simply by observation. Jack especially has a crowning moment by analyzing a recording of Weyoun: Because the Vorta language is heavily-inflectednote , much of the real meaning of Weyoun's remarks are lost when translated into English by the Universal Translator. Jack instead listens to him with the Translator disabled, and is able to deduce from his word tense and case alone that the Dominion is trying to pull a fast one in their negotiations. The "Pack's" analysis discovers that a seemingly inconsequential world the Dominion is requesting to trade for would actually enable them to produce Ketracel White in the Alpha Quadrant, depriving the Federation of one of its major advantages.note
- Beware the Superman: The Jack Pack make for a very compelling case for why the Federation government is afraid of genetic engineering. They're smart and helpful, but they almost cause the Federation to lose the war because their arrogance. However, this is explicitly because the ban meant they received badly done black-market treatments that affected their sanity and face open persecution out of fear.
- Blatant Lies: When Odo catches Weyoun and Damar at the rendezvous, they claim that they got lost. Odo doesn't bother to dignify that with a response.
- Call-Back: To "By Inferno's Light"—Dukat's and Damar's speeches end the same way:"This I vow with my life's blood...for my sons... for all our sons!"
- Continuity Nod: Their predictions state that the eventual Alpha Quadrant Revolution will begin on Earth... which is the same conclusion that Weyoun and Dukat came to back during the Occupation of Deep Space Nine, and also why they wanted to exterminate the population of the planet.
- Defiant to the End: Sisko's makes it very clear to Bashir that he will never surrender to Dominion, no matter what predictions the Jack Pack makes.
- Disability Superpower: Averted. They're brilliant analysts because the 'Jack Pack' are legitimately brilliant, not because they've been damaged by their genetic engineering.
- Earn Your Happy Ending: The Jack Pack predicts that a few generations after the Dominion's victory, a revolt will overthrow the Dominion and establish a stronger Federation to rule for millennia. Subverted in that an earlier episode had revealed the Dominion had predicted the same thing and was already planning drastic measures to prevent it.
- Establishing Character Moment: Each of the Jack Pack gets one. Lauren's obvious sexual interest in Bashir from just his file photo, Patrick's child-like begging for Dr. Loews not to leave him, Sarina just standing around like she's not really part of what's going on, and Jack deliberately injuring Dr. Loews by handing her the PADD with broken glass on her palm, then offering a very obvious insincere apology.
- Faux Affably Evil: Jack. One moment congratulating Bashir for being like him, the next threatening to snap Sarina's neck if he doesn't get his way.
- Foreshadowing: The Jack Pack successfully predicts both the Romulan entry into the Federation Alliance and the anti-Dominion coup on Cardassia.
- Gone Horribly Wrong: The "Jack Pack" all had their intelligence increased, but each was left with severe psychological problems - Jack's hyper-aggressive and anti-social, Lauren's sex drive was amplified and her inhibitions are nearly non-existent, and Patrick has the emotional maturity of a 5-year-old. Sarina's was the worst, with her brain working at speeds her body couldn't catch up with, leaving her cut off from the world.
- It Seemed Like a Good Idea at the Time: Sisko defending the Federation's No Transhumanism Allowed decision.
- Large Ham: Jack. Good grief, Jack. Mix Genki Guy, Motormouth and No Indoor Voice, shake and enjoy the raw pork.
- Leaning on the Fourth Wall: In what can only be described as tongue-in-cheek in-universe Genre Savvy, The Jack Pack accurately analyze Damar's personality and motivations by likening him and everyone in the Dominion to Character Types (albeit transplanting them as Fantasy characters). They even refer to events the viewer has recently seen in prior episodes as "Not a bad story. Epic, really."
- The Main Characters Do Everything: Even Damar wonders aloud why he and Weyoun are meeting informants in person.
- Neck Snap: An aggravated Jack threatens to break Sarina's neck when bothered by a noise only the Augments can hear.
- No One Is Indispensable: Weyoun says this to Damar, just to keep him in his place.
- Sherlock Scan: The group immediately and accurately details Damar's back-story after a single viewing of an unrelated speech he gives.
- Smug Super: Jack. Bashir briefly becomes is when trying to convince Sisko and O'Brien that the Federation should surrender to the Dominion based on nothing but the Jack Pack's calculations, acting conscending to them not accepting the Augments's greater intellect.
- Someone's Touching My Butt: When Julian accepts Lauren's invitation to dance, she grabs his ass as they come together. Julian moves it to his shoulder.
- Too Clever by Half: The main thrust of the episode. Basically, they forget that other people are also allowed to analyze things and make their own moves. The most immediate result is that their attempt to turn over intelligence is instantly discovered and prevented. The one they never found about (but we the audience learned a few episodes prior) is that the Dominion also predicted the Earth-base rebellion the Jack Pack think is the only hope and plan to sterilize the planet to prevent that very thing. They also don't know (and neither does anybody else for at least another year) about the Changeling virus that Section 31 created, which will play a surprising role in the outcome of the war.
- Translation Convention: Inverted—Jack turns off the translator and uncovers a key point in Weyoun's proposal that got lost in translation.
- Verbal Tic: Jack has one, hmm hmm hmm.
- What the Hell, Hero?/"The Reason You Suck" Speech: O'Brien gives Julian one for advocating surrender and not accepting any other course of action. It's relatively mild as far as the trope goes, but still jarring.O'Brien: The way you're acting, you think that nobody with half a brain could possibly disagree with you.
Bashir: Frankly, I don't see how anyone can.
O'Brien: Well, I can see two possibilities: either I'm even more feeble-minded than you ever realized, or you're not as smart as you think you are.
- You Can't Fight Fate: The Jack Pack firmly believes that The Federation is fighting a Hopeless War and that no matter what happens, the Dominion will win. However, after Sarina surprises them all by turning them in, Bashir decides that our heroes can still Screw Destiny.