History Recap / StarTrekVoyagerS5E15DarkFrontier

* NoOneCouldSurviveThat: The crew has a MassOhCrap moment after they've collapsed the transwarp conduit, only to detect Borg signatures. Instead the conduit opens to spew the remains of the pursuing Borg vessels. However the Queen turns up in later episodes (it's already been established in canon that the destruction of a vessel the Borg Queen is physically on does not destroy her).

* NoodleIncident: The Ferengi attempt to break into Fort Knox.

** [[TeamMom Janeway tucking Seven into her alcove]] at the [[GoToSleepEnding end of the episode]], which has been compared to a custody battle JustForFun/InSpace
** The way the Hansens treat the Borg drones makes them seem like they're documenting the behavior of local wildlife.
** The Borg Queen's behavior with Seven is similar to an abusive parent towards a child that severed their ties with them.

-->"There are [[RuleOfThree three things to remember]] about being a Starship Captain. [[StiffUpperLip Keep your shirt tucked in]], [[GoingDownWithTheShip go down with the ship]]...and [[LeaveNoManBehind never abandon a member of your crew]]."

* RidiculouslyHumanRobots: Holograms, in this case. As the ''Delta Flyer'' ruins into turbulence inside the transwarp conduit, [[ProjectedMan the Doctor]] becomes spacesick. He comments that he'll have to adjust his matrix to compensate for the velocity.

* SeriesContinuityError: The Queen proclaims that Seven is "the only Borg who has returned to a state of individuality" in spite of prominent examples of this having already happen several times, such as [[Recap/StarTrekTheNextGenerationS3E26S4E1TheBestOfBothWorlds Picard/Locutus]], [[Recap/StarTrekTheNextGenerationS5E23IBorg Hugh]], and the plot of a previous Voyager episode, "[[Recap/StarTrekVoyagerS3E16Unity Unity]]", which was centered around an entire colony of former Borg drones. It's possible she was lying, but Seven, a former drone, would know that.

* DoesThisRemindYouOfAnything: [[TeamMom Janeway tucking Seven into her alcove]] at the [[GoToSleepEnding end of the episode]], which has been compared to a custody battle JustForFun/InSpace

* BrickJoke: A NightmareFuel version -- the Doctor proudly shows off a Borg surgical arm he's found. In Part Two a similar arm is seen being forcibly implanted on a prisoner.

* DoesThisRemindYouOfAnything: [[TeamMom Janeway tucking Seven into her alcove]] at the [[GoToSleepEnding end of the episode]], which has been compared to a custody battle InSpace

-->"There are [[RuleOfThree three things to remember]] about being a Starship Captain. [[StiffUpperLip Keep your shirt tucked in]], [[GoingDownWithTheShip go down with the ship]], and [[LeaveNoManBehind never abandon a member of your crew]]."

* CurbStompBattle: Averted at first when Species 10026 has a weapons technology that can destroy Borg ships, but invoked when some TechnoBabble reduces the effectiveness of that weapon to no longer be a major threat to the Borg and the whole of Species 10026 is assimilated [[spoiler:save four members of the species that Seven of Nine protected from assimilation.]]

* AdultFear: Erin and Magnus Hansen, when the Borg catch up to them in the last flashback. They know better than anyone what the Borg do to children...

** "Always keep your shirt tucked in" could be a MythologyGag re the "[[FanNickname Picard Manoeuvre]]", the shirt-tug done by Captain Picard whenever he stands up.

* TakeAThirdOption: Rather than agree that four survivors should be killed or assimilated, Seven attempts to offer them freedom. The Borg Queen almost brings them back, but she lets them go at Seven's request.

* NotSoDifferent: There are overt similarities between Janeway's efforts to bring Seven into her crew, and how the Borg Queen tries to influence her.

-->'''Seven:''' This is a dream. I'm regenerating...
-->'''Borg Queen:''' It's not a dream. We've accessed your neural transceiver. Our thoughts are one.

* BreakTheHaughty: The Hansens spent years studying the Borg up close, taking many stupid risks in the name of their research because they believed the Borg were predictable, hive-minded robots who would never see them as a threat. It's only in the last flashback, when the Borg are chasing them and they've run out of tricks, that they finally realize the deep shit they're in.

* CallBack

* CharacterTics: Chakotay knows that Janeway is plotting something reckless because she's fiddling with her combadge (never mind that we [[InformedAttribute never see such a gesture before or after this episode]]). She does it again later, catches Chakotay noticing the gesture, and gives a wry smile.

* ContinuitySnarl: Even before they encounter the Borg directly the Hansens have a lot of knowledge (witness the detailed Borg cube model) at a time when the Federation shouldn't be aware of their existence. The subject is handwaved as the Hansens being renegade scientists who broke Federation law in their obsessive pursuit of the Borg, even crossing the Romulan Neutral Zone. It was clear that by that point they were no longer in communication with Starfleet.

* InvisibilityCloak: ''Voyager'''s crew use the biodampener armbands and multi-adaptive shielding developed by the Hansens. Unfortunately the Borg [[SoMuchForStealth assimilated that technology along with the Hansens]].

* RefugeInAudacity: Taking on the Borg is a desperate gamble under the ''best'' of times, even with a full fleet of starships at your back. ''Voyager'' a small scout or courier vessel not much larger than ''[[Series/StarTrekDeepSpaceNine Defiant]]'', is all alone in the Delta Quadrant. Janeway decides to mug them.

* SoMuchForStealth: Team Janeway however proves adaptive.

** The Doctor calls out the Hansens for bringing their 6-year old daughter on a dangerous expedition into Borg space.