Relativity ( episode ) Seven of Nine is recruited by a starship from the 29th century to save " Voyager " from being destroyed in the past . Summary . Teaser . In 2371 , Captain Janeway beam s aboard the starship during the final phases of the ' s construction at Utopia Planitia . Admiral Patterson , who had been her calculus instructor at Starfleet Academy , is there to greet her with a pop quiz . After Janeway answers all of his questions correctly , Patterson shows her around her new ship . When they reach the bridge , Janeway starts to comment on how it is bigger than she expected . She sits in her chair briefly , then is shown her ready room . There , Janeway brings up her mission , specifically , Tuvok and her desire to bring in Thomas Paris . Back to the bridge , she begins proposing changes to " Voyager " already and , as she and the admiral start to get into a conversation , an ensign walks away from the helm . The ensign is a completely Human - looking Seven of Nine , avoiding eye contact . Act One . Seven of Nine scans the bridge and the observation lounge with a small , sleek tricorder . There , Janeway and Patterson come in , and she quickly hides her tricorder . After a brief chat , they leave , and she continues scanning , then leaves for engineering . There , she encounters Lieutenant Joseph Carey , who , being friendly , questions her to get to know her . Her cover story has her not assigned to the ship , but rather Utopia Planitia . She then enters a Jefferies tube and locks it . She starts scanning again . She contacts someone , telling them that she localized the weapon ' s source . Opening a hatch inside the tube , she sees a strange device inside it . The people she is in contact with tell her to begin a procedure . She attempts to remove it , but cannot because the device is out of phase ; she is in the wrong timeline , but her contact says it ' s still good they know where it is . Meanwhile , Janeway and Patterson overhear Carey finding a malfunction in an EPS relay . Wanting to get her hands dirty , Janeway goes to the Jefferies tube , only to find it locked from the inside . Patterson and Janeway go to another deck to access the tube . Seven of Nine detects them and discontinues her procedure , waiting for beam - out . Aboard another , apparently very advanced starship , the Captain says to pull her out , even when they have trouble locking on to her , saying that if Janeway and Patterson find her , then it will contaminate the timeline . When Janeway and Patterson reach the tube , Janeway only finds a strange chroniton flux of . 003 that vanishes . On the advanced ship , Seven is beamed through time onto their ship successfully , however , she falls unconscious . One of the officers goes to check on her , but , as he had warned his captain , she is dead . Act Two . Since Seven is dead , the Captain orders to recruit her again . The XO , Lieutenant Ducane , orders a new time index in the Delta Quadrant , target : USS " Voyager " . On a seemingly normal day in 2375 , The Doctor is examining Seven of Nine for symptoms of blurry vision and dizziness , which she believes are symptoms of Albright - Salzman syndrome . The Doctor concludes that she in fact has a mild case of sensory aphasia , which he clears up . The Doctor then returns to sickbay , where he begins to find many cases of space sickness , including Janeway . Meanwhile , Paris is walking through the corridors doing a ping - pong exercise . He invites Seven to be on his team for a ping - pong tournament because his other team member had come down with space sickness . She accepts and Paris continues his exercises . The tournament takes place in the mess hall against Harry Kim and B ' Elanna Torres , with Neelix keeping score . Shockingly , just as Paris spikes the ping - pong ball , it stops in the middle of the table in mid - air . Seven scans the table and detects a temporal anomaly . Seconds later , the ball shoots back towards Kim and Torres . Neelix jokingly still records it as a point . Tuvok , Janeway , and Seven then find that temporal anomalies are occurring all over the ship and will soon tear the ship apart , so Seven and Torres start looking for the source of the anomalies , while the Captain tells The Doctor about them . He suspected an anomaly , with the large number of cases of space sickness he ' s seen . Neelix then calls The Doctor to the mess hall because Ensign Mannus is violently ill . Once there , oddly , Neelix greets him as if nothing was wrong . He asks Neelix where the medical emergency is . Neelix says that everything was fine there . At that moment , Mannus falls unconscious . The Doctor diagnoses him with space sickness then revives him . He then starts to put it all together . He checks the time in the mess hall and in sickbay . Sickbay is several minutes ahead of the mess hall . Neelix had not made his call to sickbay yet . Chakotay reports to Janeway , who just had three day old replicated coffee . As it is apparent , the distortions are interfering with food replicator s . Janeway then decides to input security measures . As Chakotay explains that turbolifts are malfunctioning and everyone is forced to use the Jefferies tube s , a temporal fracture accelerates his conversation by a few seconds . Meanwhile , Torres and Seven found the source of the anomalies . It was coming from a device in the Jefferies tube that only Seven can see with her ocular implant . They tell the Captain , who is ready to initialize a set of force field s to counteract the anomalies . The plan fails and the hull starts to breach . Just then , two men from the unknown ship beam in , giving off a similar chroniton flux from five years ago , spacedock . The captain orders all hands to abandon ship . As Seven moves to an escape pod , she sees the two men . She tells them to identify themselves . They ignore her and place a device on her which beams the three of them away . Seconds later , " Voyager " is split apart and explodes with almost everyone on it . Act Three . Captain Braxton welcomes Seven to the Federation timeship . They explain to Seven that " Voyager " has just exploded due to a saboteur putting a temporal disruptor on the ship . They suggest to Seven that the saboteur transported onto " Voyager " while " Voyager " s shields were down in an attack by the Kazon . Seven agrees to help them prevent " Voyager " s destruction . Ducane begins by testing her on all things about time , such as the Pogo paradox , when the Borg tried to , incidentally creating it . Then , she goes to a holodeck to view the device in its location on " Voyager " with Braxton . Braxton unexpectedly orders her to avoid contact with Janeway if at all possible , for she has made more temporal violations than anyone in history and sticks her nose where it doesn ' t belong : hence he calls it the Janeway Factor , due to which he had to fix up three major temporal incursion s . He also mentions the timeframe he was stuck in for thirty years . Ducane finally uses a technology to hide her Borg implants and she ' s ready . In 2372 , " Voyager " is under attack by the Kazon when Seven of Nine beams aboard " Voyager " . She starts scanning for the weapon immediately . Act Four . The crew is focused on the attack when Harry Kim detects a 0 . 003 chroniton flux . They rule out the Kazon ' s weapons as the cause , and Janeway recognizes the reading from " Voyager " in drydock ( as she did three years later ) . She studies it as the battle subsides , the Kazon lead ship having been disabled , and the ship escapes . Janeway remembers the last time she saw the chroniton reading and places a force field around the area . Like her 2375 counterpart , Janeway and Tuvok both go to where Seven is ; however , this time the force fields isolate Seven from her 29th century colleagues . Unable to receive instructions , Seven is trapped in the corridor and Janeway finds her . On the timeship , Ducane continues to try to pull her out , but the force field continues to interfere with the transport and communications . Janeway demands she explain who she is , and Seven initially tries to avoid telling Janeway the truth , due to the Temporal Prime Directive , as Braxton listens in . Unfortunately , Tuvok detects Seven ' s hidden Borg implants so Janeway orders a search for any nearby vessels and is even more concerned . Seven insists there are none and , disregarding the Temporal Prime Directive , gives up and tells Janeway the truth . Seven convinces Janeway to free her to help prevent the destruction of " Voyager " in the future . In the 29th century aboard the " Relativity " , a crew member utters the Latin phrase , which literally translates as " time flees " . Seven and Janeway quickly go to the Jefferies tube where the weapon should be . Janeway , Tuvok , and Seven enter and find a man trying to place the disruptor in the tube . It turns out to be an older Captain Braxton . Act Five . The older Braxton quickly arms his device and threatens to activate it unless they lower their phasers . They do so , and then soon the younger Braxton calls in and is extremely surprised to hear who it is . The saboteur Braxton explains that this will complete " our " mission . He had undergone a temporal psychosis , having lost his rank which he blames on " Voyager " . He tells his " younger " self that once " Voyager " is obliterated , he will heal . The Braxton on the " Relativity " is determined to bring his older self into custody , telling Ducane to beam him aboard , but the older Braxton had activated a dispersal node to avoid beaming . Ducane then takes it upon himself to relieve his captain , placing him under arrest for crimes " he is going to commit . " Just as Seven of Nine is about to capture the older Braxton , he beams off " Voyager " . Seven then transports to where Braxton beamed to : back to 2371 . Back during Janeway ' s first tour of " Voyager " with Admiral Patterson , they walk down a corridor as Seven and Braxton come running through . Seven shoots at Braxton , but misses . Seven starts to suffer from temporal psychosis and starts to drift out of consciousness . Due to Janeway ' s quick order to bring up force fields , Braxton is contained , but he then beams himself to 2375 . Seven calls to be transported there . In the mess hall , the ping - pong tournament is occurring . Braxton suddenly runs through and Seven , almost unconscious , walks in and disables Braxton ' s tricorder , trapping him in 2375 . He runs , but she then falls to the ground . The Seven of Nine in this timeline walks up to her counterpart , asking her to explain herself . Seven ' s counterpart tells the other Seven to stop Braxton because their future depends on it . After " Relativity " beams the incapacitated Seven away , the other Seven captures Braxton . When Janeway arrives , she realizes that she remembers him from 2372 . " Relativity " beams Braxton away . They then beam Janeway to their ship . Ducane starts to explain to Janeway all that had happened , quickly giving her a headache . He explained that there is a Braxton in their brig and a Braxton on their bridge . They ask Janeway to go back to 2372 to completely fix the timeline . Seven ' s attempts to remove the device have introduced several noticeable temporal incursion s . She instigated a phaser fight at Utopia Planitia , interacted with Janeway ' s three years younger self and spoke to her younger self during a ping - pong tournament in front of 15 crew members . By capturing Braxton before the device is planted these changes will be removed . Seven cannot do it because she might damage herself . Janeway is confused , especially with the second Seven . Ducane assures her that by the end of the day , there will be only " one " Seven . The Braxtons will soon be reintegrated in time for the trial . The Braxton on the bridge tells Janeway where he will be in that timeline and Janeway is transported to 2372 . Janeway is beamed aboard during the Kazon attack on " Voyager " . She encountered Torres en route , telling her to do what she think is right in Engineering . When she nears the corridor where Braxton will beam in , she hides from her three years younger self . Almost immediately , she finds Braxton beaming aboard . He stumbles over a wounded crewman . At that moment , Janeway walks over to him and captures him . Back on " Relativity " , Ducane commends Janeway for capturing the last Braxton and making a small incursion of 0 . 0036 . He then is ready to send Seven of Nine and Janeway back to 2375 ' s " Voyager " , reintegrated with their past selves . He strictly reminds them to remember the Temporal Prime Directive : discuss your experiences with no one . Yet he tells her one thing : Braxton was right that " Voyager " appears on the " Relativity " s sensors too often and they should avoid time travel . They then beam back to the 2375 " Voyager " . Memorable quotes . " " Tempus fugit . " " " " Long time no see . " " " " So , in a way the Federation owes its existence to the Borg . " " " " You ' re welcome . " " " " What is the threshold of the H molecule ? " " " " 14 . 7 electron volts " " " " Third brightest star in Orion ? " " " " Viewed from where ? " " " " Earth . " " " " Gamma Orionis or Bellatrix if you prefer the original Arabic name . " " " " Not bad . Now give me a hug Katie , that ' s an order . " " " " See you in the 24th century . " " " " I look forward to it . Or should I say backward ? " " " " Don ' t get started ! " " " " Thanks to you , we ' ve learned that the temporal disruptor was , and will be concealed here . . . I gave up trying to keep my tenses straight years ago . " " " " . . . and I ended up stranded in the late 20th century . Have you ever been to that time frame ? " " " " No . " " " " Well , I don ' t recommend it . After three decades with those post - industrial barbarians , I had to go through extensive rehabilitation before I could return to duty . Avoid contact with Janeway . That ' s an order . " " " " We have a saying in our line of work : There ' s no time like the past . " " " " Janeway ! " " " " Have we met ? " " " " Too many times ! But you wouldn ' t remember , they haven ' t occurred yet . " " " " Seven of Nine to Seven of Nine , what ' s your status ? " " " " Wait a minute let me get this straight , I ' m going to go back in time to stop Braxton , but you already have him ? " " " " And there ' s a third one in our brig ; I arrested him earlier today . But don ' t worry , they ' ll all be reintegrated in time for the trial . " " " " And Seven ? " " " " Oh I assure you when this is over there will be only one Seven of Nine " " " " Alright , let ' s just get started before my headache gets any worse . " " " " Needless to say we need to clean up the timeline . Someone must go back to the beginning and prevent the chain of events from ever occurring in the first place . " " " " I can ' t make another jump without damaging myself . " " " " . . . I get the feeling I ' m about to be drafted . " " " " Is this a part of the tour ? " " " " Oh captain , Braxton was right about one thing : " Voyager " shows up on our sensors far too often . Try to avoid time travel . " " " " I ' m detecting bio - mechanical implants . They have a Borg signature . " " " " Janeway to the bridge , scan the vicinity for Borg ships " " " " Did you say Borg ? " " " " Do it ! " " " " Next time your Human physiology fails you , don ' t consult the database ; just call me . " " " " You " are " the database - " " " " - with two legs and a splendid bedside manner . " " " " I ' m sorry , sir . I ' m taking command of this vessel , and I ' m relieving you of duty for crimes you ' re going to commit . " " Links and references . References . access point ; ; Albright - Salzman syndrome ; barbarian ; Bellatrix ; bedside manner ; Borg ; brig ; Cargo management unit ; cerebral cortex ; ; chroniton ; class 9 warp drive ; ; coffee ; containment generator ; Dali Paradox ; dispersal node ; dizziness ; Delta Quadrant ; drafting ; drydock ; Earth ; electronvolt ; emergency power ; ; EPS manifold ; EPS relay ; evasive maneuvers ; ; Federation ; fractal calculus ; ; ; hand - eye coordination ; headache ; holomatrix ; hydrogen ; inaprovaline ; inertial damper ; internal chronometer ; ; intruder alert ; ; Janeway Factor ; Jefferies tube ; Kazon ; Kazon carrier vessel ; Kazon raider ; logic ; M class ; memory engram ; meter ; metric ton ; Milky Way Galaxy ; navigational sensor ; neurological condition ; ocular implant ; ; ; ping - pong ; Pogo paradox ; pop quiz ; ; ; sawdust ; sensory aphasia ; service number ; small talk ; space sickness ; space - time fracture ; spatial charge ; Starfleet Medical Database ; ; Takara sector ; TCARS ; temporal disruptor ; temporal distortion ; temporal incursion ; temporal inversion ; temporal paradox ; Temporal Prime Directive ; temporal psychosis ; temporal transporter ; temporal threshold ; tempus fugit ; time travel ; timeship ; tricorder ; tricyclic input manifold ; torpedo ; Utopia Planitia ; Utopia Planitia Fleet Yards ; " Val Jean " ; visual acuity index ; Dedication plaque references . BAS ; ; ; ; ; ; ; ; ; : MD ; NCV ; ( degree ) ; NTSC ; OCL ; PhD ; : ; ; RET ; ; ; ; ; Temporal Integrity Commission ; University of Copernicus ;