Scientific Method ( episode ) A group of aliens perform experiments on the crew without their knowledge . Summary . Teaser . Torres climbs through a Jefferies tube . Something is depleting power from a warp core diagnostic she was running in engineering , and she is trying to find the source of the problem . She comes upon Seven of Nine who is working at an energy conduit . She finds that Seven is causing the power drain by diverting power away from non - key areas to the under - construction astrometrics lab . Commissioned by Captain Kathryn Janeway , this lab , using both Starfleet and Borg technology , will vastly improve " Voyager " s stellar cartography and sensor capabilities . Seven of Nine will be in charge of it , in effect becoming the ship ' s chief astrometrician . Seven ' s power diversion is disrupting Torres ' work and Torres confronts Seven , telling her she should have had the power diversion cleared first . She remonstrates her about following procedure but then stops as she realizes that she sounds like Janeway . She adopts a more understanding tone and tells Seven that if she herself , a hot - tempered Starfleet Academy dropout and former Maquis can adapt to Starfleet life and procedure , Seven can as well . Seven apologizes for her actions . In sickbay , Lt . jg Tom Paris , functioning as a medical assistant , begs The Doctor for time off telling him he has a conn report to finish . The Doctor sees that Paris is lying but lets him leave , with a curious look . Paris thanks him and leaves . He goes to a corridor console , calls up a plan of the ship , makes sure nobody is around , and initiates a site - to - site transport . He materializes in engineering , there to meet Torres . They kiss but , as they do so , a strange effect is seen : they are anatomically scan ned , right down to their skeletons . Torres suddenly gets the feeling that they are being watched but brushes it off and they return to kissing each other . Act One . In her quarters , Captain Janeway is being given a vigorous osteopathic massage by The Doctor . He complains that she is over - stressing herself , mentioning the nagging headache she has been complaining of . It has been plaguing her for the last several days and is getting worse , feeling " like hot needles " in her skull . Commander Chakotay , hails her from the bridge with news that they have found the source of energy readings they had been tracking . Janeway ends the massage , to The Doctor ' s annoyance , and heads for the bridge . She arrives and sees on the viewscreen what Chakotay called her to see : two binary pulsar s . Chakotay informs her of the extent of the combined gravitational pull : anything within fifty million kilometer s is getting pulled in and destroyed . He informs her that " Voyager " is well out of range . Chakotay comments that they can still collect some invaluable data if they are careful but notices that she is not paying attention and the strain on her face from her headache is evident . She apologizes , puts the project in his hands and leaves the bridge . Paris again goes to engineering to meet Torres . She makes an excuse for them to go to the area ' s upper level , where they will be alone . Once there , they again engage each other amorously , even more intensely than before . However , they are caught ; Lt . Cmdr . Tuvok walks in and finds them embracing . He hands Torres a PADD with data she had requested . Profoundly embarrassed , she and Paris quickly regain their composure and Torres rambles an awkward thank you . Tuvok leaves without comment . Paris rushes out after the Vulcan and seeks an assurance from Tuvok that he will say nothing and make no report of what he saw . Paris obtains no such assurance . He and Torres attend a senior officer s ' meeting , called to discuss plans to collect data about the pulsars . The two try their best not to look embarrassed by what happened in engineering . Chakotay conducts the meeting , while Janeway sits quietly , looking as ill as before . When it is done , she dismisses the staff , all except Paris and Torres . Alone with them , she harshly chews them out for their " adolescent behavior " for senior officers , setting a very poor conduct example . Paris mentions Tuvok , assuming he told her , but she sharply lets them know that he did not as it is their own behavior that has been making such a display that the entire crew is gossiping . She angrily orders them to act with better judgment and dismisses them . They scurry out and she holds her badly aching head in her hand . Chakotay is in his quarters , working on the planned data collection operation but he cannot concentrate on his work . He replicates some coffee but as he sips it , the same anatomical scan that was seen being performed on Paris and Torres is seen being performed on him . His hands begin to shake so much he drops the cup . He goes to the bathroom , runs water into the sink and washes his face , passing his hand through his hair . Then he notices some of his hair in the sink . In shock , he begins raking hair off his scalp . Act Two . Chakotay is in sickbay on a biobed . He has aged considerably . Janeway , despite her own recurring migraines , is there , getting a report on his condition from The Doctor . He confirms that Chakotay has indeed rapidly aged . His DNA segments that regulate metabolism have been hyper - stimulated , causing the effect . The Doctor cannot guess as to what is causing this hyper - stimulation . Chakotay insists his mind is still at his chronological age and wants to get back to work but The Doctor insists he stay put , with Janeway ' s agreement . The Doctor asks her permission to set up an electron resonance scanner in the science lab to look at his DNA more closely and Janeway agrees . In the mess hall , Paris sits with Ensign Harry Kim ruefully discussing the stern chewing - out that Captain Janeway gave him and Torres . Neelix takes their breakfast order and goes into the kitchen to prepare it . Suddenly the loud crash of pots and pans hitting the floor is heard . The two officers rush in , alarmed , and find Neelix on the floor , in great pain . They urgently hail sickbay . In sickbay , Neelix ' appearance has changed drastically . His entire head is now covered with spots as opposed to just his temples , spots much larger than what he had , and his whiskers are gone . The Doctor , after examining him , finds that , like Chakotay , his genes too have been altered . Instead of aging , Neelix is actually changing species , becoming a Mylean , the race of his great - grandfather . The Doctor leaves Paris in charge and goes to the science lab to work on their genetic analyses . Torres is assisting The Doctor but soon after he is gone , two more crewmembers come in ill and calls notifying of impending new arrivals start coming in . With nothing else that can be done for them , and some of the reports being emergencies , Paris releases Chakotay and Neelix to their quarters . The Doctor and Torres scan Chakotay ' s DNA . They notice something very odd : black marks on the base pairs sequences . Full magnification shows them to be tags , like 20th century barcodes . Neelix ' DNA is tagged as well . It is a logical hypothesis that these tags are causing their condition . Moreover , they find that the tags are actually emitting a very weak signal . They begin to run a scan for possible receptors using the ship ' s internal scanners . But then The Doctor begins to waver . Torres checks his mobile emitter and discovers with great alarm that he is being deleted . She immediately begins transferring him back to sickbay but then screams and collapses . The Doctor urgently hails the bridge , before he himself disappears . Act Three . Captain Janeway , Paris , Kim and Seven of Nine are in sickbay , around Torres ' biobed . The Doctor is absent and sickbay is now full of patients . Paris reports that Torres ' lungs suddenly ceased to process oxygen , nearly killing her . Janeway looks disheveled and sleepless as her migraines have increased in intensity . She asks about The Doctor . Kim explains that the computer logs show he was trying to transfer himself to sickbay and he theorizes that something must have gone wrong with the transfer . But then Seven of Nine hears an urgent hail that none of the others hear . It is The Doctor . He urgently tells her he has tapped into her Borg audio implant s . He is hiding in the captain ' s holoprogram in Holodeck Two . He asks her to join him at once , cautioning her not to tell anyone . Seven listens but her attention is called back by Janeway sharply calling her name . To the others it looks as if she was daydreaming . Responding to a question about The Doctor ' s research , she responds that she examined the lab but the electron resonance scanner apparently malfunctioned . She offers to go and repair it , using that as excuse to leave for Holodeck Two . Janeway agrees and she quickly leaves sickbay . She arrives at the holodeck and enters the Da Vinci simulation . The Doctor has disguised himself as a painter teaching a bunch of holographic ally - created art students . He urgently informs Seven of a conclusion he has arrived at : someone aboard is deliberately causing the genetic alterations that are afflicting the crew . Why this is being done , he cannot say . But he and Torres were getting close to finding the culprit and were " dealt with . " Seven surmises that communications may be monitored , if this accusation is true . He agrees and , to gather more information , he modifies her ocular implant to scan visually along the frequency on which the genetic tags are transmitting . After this is done , she looks around the simulation but sees nothing out of the ordinary . She leaves to search the rest of the ship , intending on reporting back to The Doctor using the isolated comm frequency with which he has tapped into her audio implants . Seven walks through the corridors , ignoring sight in her organic eye and focusing her attention on her ocular implant . At first , she sees nothing unusual . Then she sees a crewmember walking briskly . She switches attention to her organic eye ; all looks normal . But with her ocular implant , she sees a grotesque - looking device on the crewmember ' s head , with tubes going up both his nostrils . He nods at her pleasantly , apparently completely oblivious to the device . And she sees something else with her implant : a brown - robed humanoid alien , who passes and monitors the crewman . Seven feigns absolutely no indication of awareness of the alien . She boards the turbolift , the alien boards with her and sticks a large metal probe into her chest . She continues acting as if nothing is happening and , when the doors open again , the alien removes the device . She steps off and continues down the corridor of another deck . Crewmen go past her , some with devices on them , others without , each completely unaware of what is happening . She enters the mess hall and finds most of those present have devices on them . Brown - robed aliens attend to the devices , taking readings and adjusting them . The devices are attached to various body parts : head , shoulders , necks , backs , legs , etc . Seven , again giving no indication that she is seeing anything out of the ordinary , pretends to pour herself a cup of coffee . She contacts The Doctor using her audio implants and tells him what she is seeing . He tells her to go and inform the captain immediately . Captain Janeway is in her ready room , looking extremely agitated and irritable . Tuvok comes to see her and notes her condition . After discussing official business , Janeway then talks to Tuvok about the incident between Paris and Torres . She tells the Vulcan that she ' s sick of people taking advantage of the lack of protocol and orders Tuvok to straighten out the heads of each department . Tuvok then asks if he should " flog " them as well . This makes Janeway realize she ' s overreacting and maybe she needs a vacation . Seven comes to see her ready to inform her about the aliens , only to be stopped in her tracks to find that Janeway also has one of the alien devices on her . Metal spikes are sticking into her head while two aliens are on either side of Janeway , adjusting the devices to drive them in even deeper ( this clearly being the cause of Janeway ' s severe headaches ) . Seven quickly regains her composure and , since she obviously can no longer inform Janeway of what is going on , she tells her instead that her attempts to fix the scanner in the science lab have failed and asks for help . Janeway assigns Kim to assist her and then all but shouts at her to leave . She quickly does so . Act Four . Returning to the Da Vinci simulation , Seven informs The Doctor that she counted 56 alien s and surmises that they are performing experiments on the crew . They decide that the next course of action they are going to take is to stop the aliens and their experiments . The Doctor says that they must act quickly , before these induced genetic mutations , growing ever more serious , start becoming fatal . Seven suggests that a phaser beam should make the aliens visible , however The Doctor points out that this may cause the aliens to retaliate by inflicting severe mutations on the crew , before recalling his earlier hypothesis that the genetic tags are the key and suggests causing a ship - wide neuroleptic shock to disable them . Although the shock will be , as The Doctor puts it , " " rather . . . painful " " the crew will recover . Seven suggests modifying the ship ' s EPS relay s to deliver the shock . The Doctor agrees with her plan . Seven goes to engineering to make the modifications . Here , too , the aliens are present , with their devices on crewmembers . She begins overriding the safety protocols but Tuvok , on the bridge , notices at his tactical console her modifications . He hails her and demands to know why . Seven responds and makes up an explanation . Unconvinced , and remembering the last time Seven began fiddling with the ship ' s systems , he goes to engineering himself , armed with a phaser and orders her to stop . Three aliens , unseen by him , take notice and approach them curiously . Forced into a corner , Seven abandons the plan and instead quickly grabs Tuvok ' s phaser , changes the setting and fires at one of the aliens . She becomes visible and Seven quickly grabs her . Tuvok and the Engineering Crew look on as Seven warns the other two , still unseen , that she will kill the captured one if they do not back off . Seven sternly informs the captured alien that the captain will certainly have questions for her . The alien sits quietly in a cell in the brig . Her name is Alzen and her race is called the Srivani . Captain Janeway enters with Tuvok and Seven . She looks almost deranged with pain and anger . She orders Seven to continue trying to disable the tags and Tuvok to modify the internal sensor s to detect the Srivani and then dismisses the two . Barely containing her rage , she demands the alien identify herself and explain what she and her fellows are doing to her and her crew . The alien calmly responds that they are scientist s and are performing medical research on them . She insists that their techniques are " " as benign as we can make them " " and proudly states that their research benefits millions of their people , who live longer and healthier because of it . Janeway angrily tells her what they are doing is barbaric and unethical but Alzen is unmoved , claiming that Janeway would behave no differently to protect her own crew . Janeway drops the force field barring the cell ' s doorway and enters , struggling to control herself . She responds angrily that that her actions are in self - defense but what the Srivani are doing is viciously exploiting another species for their own benefit . Alzen merely observes that Janeway ' s restraint has been remarkable , considering that they have been steadily raising her dopamine levels and hyper - stimulating her aggressive impulses to test her behavioral restraints . She remarks that there is much debate about how much strain she can bear . At this , Janeway nearly snaps . She seizes Alzen and slams her against the bulkhead . " " Not much , " " she hisses through gritted teeth , before barely regaining control of herself and releasing her . Alzen calmly , but now with an edge of sternness , warns her not to interfere . The research , she says , will continue . There will be minimal fatalities , she assures Janeway , though , she adds , there may be some deformities . But any interference , she warns , and the entire experiment , along with its " subjects , " will be terminated . Act Five . Janeway calls an emergency meeting in the ready room . She , Tuvok , Seven and The Doctor try to come up with ideas to get rid of the Srivani . The internal sensors are unable to detect them and the Srivani have modified the EPS relays to prevent Seven from inducing the neuroleptic shock . More and more people are being taken to sickbay with increasingly severe symptoms and a direct confrontation would be unwise due to their ability to tamper with the crew ' s DNA . Then a hail comes from the bridge : another medical emergency . They rush out to find a crewwoman lying on the floor , convulsing . Her face is horribly crisscrossed by ruptured blood vessels . The Doctor desperately tries to save her but fails . The Srivani have raised her blood pressure to far beyond fatal levels . Every vessel in her entire circulatory system has burst . Janeway manically tries to revive her but cannot . Janeway looks at the body and decides that this must end , " now " . She storms to the conn console , angrily relieving the officer on duty there , who immediately vacates the seat . She sits and angrily punches in a course and initiates red alert . The ship heads for the pulsars . Seven informs her that a Srivani has come onto the bridge . Tuvok warns her that they have to change course at once or be caught in the stars ' gravitational pull . She refuses . At operations , Kim reinforces the ship ' s structural integrity field as much as possible , not that it will help against the pulsars ' crushing gravity . The Srivani intruders ' leader , , makes herself visible and sternly asks Janeway what she hopes to accomplish . With a feral grin , Janeway responds that she is trying to crush the ship like a tin can . The Srivani sneers that it is more likely she is trying to intimidate them . Janeway sneers back that she is welcome to stay and find out . Takar tries to lay in a course change , but Janeway informs her that the course is locked in and only the captain ' s authorization can unlock it . Takar tells her that she is not behaving rationally . Janeway nearly laughs and responds that this is what they wanted with their experiments , to see how much she could take before going over the edge . They caused this by raising her dopamine levels to the point of madness and by depriving her of sleep for four consecutive days with the constant , maddening pain of their devices in her skull . She coyly tells them that they are now seeing the result of their experiments on her and they will be right there to collect the final data . Takar grows frantic . She orders Janeway to change course , reminding her that they can kill the crew in an instant . Janeway tells her that without the crew , they will never be able to prevent the ship from being crushed by the pulsars . And even with the crew , the chances of survival are one in ten but Tuvok quickly corrects her that their odds are one in twenty . Takar ' s face flushes with fear . She backs away and vanishes . At the auxiliary tactical console , Seven informs Janeway that two alien vessels are disengaging from " Voyager " s hull . The top of the saucer section is seen , engulfed by the fire of the stars ' aura . Two small ships become visible , attached to the hull . They detach and pull away but one explodes . Back on the bridge , Seven reports hull breaches on three deck s . Janeway replies that their best chance of survival is to attempt to race between the stars at maximum impulse . She keeps the ship on course and cranks the impulse engines up to maximum . Helm control fails and main power goes off - line . Janeway stares at the pulsars on the viewscreen , the brightness of their light washing over the bridge . " Voyager " glows red . . . And passes between the stars , coming through on the other side . The hull cools down . Janeway , Seven , and Kim sigh with relief . Sweat is on Janeway ' s brow . She comments jocularly to Tuvok that she did not know he considered her reckless . Tuvok responds that that was , clearly , an understatement . Janeway snickers . Paris and Torres have dinner in Paris ' quarters . The menu is salad and red wine , Ktarian merlot from 2282 . A hail comes from engineering , informing Torres of a problem with the warp core ' s plasma manifold . She orders it locked down and she will deal with it in the morning . They begin to eat but are interrupted by the door chime . It is Kim who is returning a PADD . He tries to make conversation with them but Paris shuts the door on him in mid - sentence . They remove their combadge s , to prevent further interruption . As they move to kiss each other , they joke that their attraction to each other must be a residual effect of the Srivani experiments and they kiss . Memorable quotes . " " Seven of Nine , this is The Doctor . Can you hear me ? It ' s me , The Doctor . I ' ve tapped into your audio implants so only you can hear me . It ' s imperative that you tell no one . Make any excuse to get out of there and report to holodeck two . I ' m hiding in the da Vinci simulation . I ' ll explain everything when you get here . " " " " You " are " security chief . Don ' t thirteen department heads report to you every day ? " " " " Yes . " " " " Well , straighten them out . " " " " Shall I flog them as well ? " " " " Don ' t move . If your people attempt to incapacitate me , I will kill you . " " < br > " " I believe you . What do you intend to do now ? " " < br > " " You will come with me to speak to the captain . I am certain she will have questions for you . " " " " Who are you ? And what the hell are you doing to my crew ? " " < br > " " My team has been observing you and conducting tests . " " < br > " " Tests ? I ' d call them mutilations . " " " " Sorry , these lab rats are fighting back . " " " " Good morning , Captain . " " " " That ' s a matter of opinion . " " " " Captain , what are you doing ? " " " " I ' m running a little experiment of my own . Red Alert ! " " " " What do you hope to accomplish by this ? " " " " Flying into a binary pulsar ? Seems like I ' m trying to crush this ship like a tin can . " " " " It ' s more likely that you ' re trying to intimidate us . " " " " You ' re welcome to stick around and find out . " " " " That ' s what you were trying to accomplish , wasn ' t it ? Hmm ? Pumping up my dopamine levels to push me to the edge , keeping me awake for four days straight with the constant pain of your devices drilling into my skull . Well , this is the culmination of your work , and – guess what – you ' re going to be right here to collect the final data . " " " " I never realized you thought of me as reckless , Tuvok . " " " " A poor choice of words . It was clearly an understatement . " " " " I don ' t know about you , but I ' m curious to see how this experiment turns out . " " " " Captain ! " " " " I know what you ' re going to say , doctor , but I can ' t neglect my responsibilities . " " " " Actually , I was going to suggest a change of outfit . " " " " Do you think he ' ll say anything to the captain ? " " " " I don ' t know . " " " " Well , how did he sound ? Annoyed ? Amused ? " " " " Sounded Vulcan – what more can I tell you ? " " " " I don ' t believe it , we ' re alive ! " " " " If I could adjust to Starfleet life , so can you . " " " " Of course . " " Links and references . References . 2282 ; adrenal stress ; alveoli ; " Annunciation " ; arthritis ; audio implant ; auxiliary power ; auxiliary systems monitor ; base pair ; bio scan analysis ; blood pressure ; Borg Collective ; brig ; cardiac arrest ; cardiopulmonary resuscitation ; chief engineer ; circulatory system ; coffee ; command code ; compositional analysis ; conn report ; decalcification ; deformity ; desktop monitor ; digestive system ; DNA ; door chime ; dopamine ; dyne ; electron resonance scanner ; EPS relay ; ; experiment ; flogging ; flower bouquet ; fork ; gamma radiation ; genetic tag ; " Ginevra de ' Benci " ; hair loss ; headache ; holodeck ; hull stress ; hypertensive shock ; inn ; internal bleeding ; internal organ ; internal sensor ; ; Intrepid class decks ; Jefferies tube ; kilometer ; kiss ; Ktarian Merlot ; lectrazine ; " Leonardo da Vinci ' s workshop " ; lion ; log ; lung ; massage ; masseur ; master systems status ; medical ethics ; medical probe ; microbiologist ; micro - inducer ; mirror ; ; month ; mutation ; Mylean ; necrosis ; Neelix ' s great - grandfather ; neuroleptic shock ; osteopathic pressure therapy ; oxygen ; paranoia ; Petri dish ; phase variance ; phaser ; plasma manifold ; pleeka rind casserole ; power coupling ; progeria ; proton burst ; psychological disorder ; pulsar ; ; quarters ; rat ; red alert ; ; safety protocol ; salad ; schematic ; science lab ; scrambled eggs ; sculpture ; senior officer ; sensory node ; Siena ; sink ; site - to - site transport ; spinal column ; Srivani ; Srivani illnesses ; Srivani vessel ; ' ; statue ; stress ; subspace field geometry ; tactical course projection ; Talax ; Talaxian ; taste bud ; tattoo ; towel ; trapezius ; tumor ; turbolift ; Tuscany ; type 4 micro - inducer ; viewscreen ; ' ; vocabulary ; Vulcan ; ; wine Unreferenced material . tea ; vasoconstrictor