Datalore ( episode ) The " Enterprise " explores Data ' s home planet , Omicron Theta . They find his brother , and the dark secret he carries . Summary . Teaser . While passing Omicron Theta , the stops to investigate the site of Data ' s discovery . An entire Earth colony disappeared from the planet 26 years ago , and the whole planet now appears dead . Riker leads an away team that beams down to the spot where Data was found by crewmembers from the . For some reason , Data has been given the memories of all 411 colonists , and he is interested in learning why . Act One . The away team proceeds to the topographical site where Data was found ; it is a hollow with a rock wall . He was found in the open , and was apparently activated by a marker beacon that detected the crews ' presence . Geordi La Forge examines the rock wall with his VISOR and sees that it was man - made . He finds a hidden door in the wall that opens onto a passage that leads to an underground shelter . The away team goes down one of the corridors before coming to a door that leads to a laboratory , where Data recalls impressions of his basic functions being tested . There are children ' s pictures on the wall , all apparently of the same scene . Data doesn ' t know what they represent , only a sense that they refer to something dangerous . Riker presses him and asks if he can remember anything else about the lab . Data replies that he can remember one of the machines being used by a Dr . Noonian Soong . La Forge recognizes the name of Earth ' s foremost robotics scientist . He tried to create a positronic brain , but failed and then disappeared . Now , they realize he went to Omicron Theta under a different name to continue his work . Data , La Forge , and Riker continue to search the lab , while Natasha Yar and Worf search the rest of the bunker . They find molds for making Data ' s skin , and Yar reports that the rest of the bunker is empty . Then La Forge comes across a storage area . Inside , they find another android identical to Data . Data is excited by the discovery and they decide to bring it back to the " Enterprise " for assembly . Act Two . Back on the " Enterprise " , a team of engineer s and technicians try to reassemble the android . Argyle confirms that " it " has the same body parts as Data , and asks if he can examine Data if he needs more information , comparing the internal circuitry , and Data agrees . After briefly conferring with Picard in the observation lounge , he returns to Dr . Crusher . He shows Crusher his off switch , asking her to keep it secret . Then she and Argyle open him up and check his internal construction . After they close him up , Picard and Riker arrive in sickbay . The other android has been fully assembled , but he is still not active . Picard wonders aloud which was made first . Suddenly , the second android comes alive and says that Data was . He calls himself Lore , and says he was made to replace the " imperfect " Data . Act Three . Data and Picard talk in the ready room . Data believes both Lore and himself have the same physical and mental capabilities . Picard then asks Data where his loyalties lie , and Data assures him that his loyalty is to Picard and Starfleet , completely . They go out onto the bridge where Wesley Crusher and La Forge are explaining the helm controls to Lore . Riker then says the first part of Pythagorean theorem , and Lore unthinkingly completes it , except the last word , " sides , " which he claims he never really knew in the first place . While his face twitches , he says he enjoys pleasing Human s . Data leads him off to show him the rest of the ship , telling him Riker tricked him into revealing he knew more than he let on . He warns him not to underestimate Humans , but Lore is dismissive . He tells Data not to be jealous of his ability . They go to Data ' s quarters , where Data checks up information about Dr . Soong . Lore calls him " Often Wrong Soong " and derides Data for the way he tries to mimic Humans . Data asks him again which of them was built first , and Lore admits he was built first . He says the colonists became envious of him and persuaded Soong to build a less perfect android – Data . Lore was too Human , understanding language and humor . Data leaves to go on duty and asks Lore to make a report to the captain about what happened to the colonists . Act Four . On the bridge , Picard and Riker analyze Lore ' s report . The colonists were killed by a Crystalline Entity that feeds on lifeform s , and is capable of stripping all life from an entire world . The two androids survived because they were not alive when the entity attacked . Yar tells Picard that Lore has left his room to go to deck four , and Picard tells Data to check up on him . When he goes , Yar asks if he can be trusted , to which Picard replies that he trusts him completely . In Data ' s quarters , Lore mixes a pill into some Altairian Grand Premier champagne which he offers to Data when he enters . Data drinks the champagne , and realizes immediately something is wrong . He collapses , and Lore reveals that he learned to communicate with the crystalline entity , which he led to the colonists in order to get revenge . On the bridge , a subspace communication is detected coming from Data ' s quarters , and Picard sends Wes down to check it out . Lore is communicating with the crystalline entity . He tells it to identify him as Data . Wes comes in and " Data " tells Wes that " Lore " attacked him and he had to switch him off . His face twitches and covers it up , saying he ' s been practicing Lore ' s facial twitch . Lore / Data says he ' s coming up onto the bridge , and after Wes leaves he uses a small tool and fixes his own twitch and causes one in Data . Dr . Crusher asks Wes on the bridge what happened and he tells her he shut Lore off , which makes her suspicious since it was their secret . " Data " arrives on the bridge when La Forge detects an unknown object approaching at high speed . It is the crystalline entity . Act Five . Picard says they need to question Lore . Wesley loudly protests now that he doesn ' t trust Data / Lore . Picard and Riker are both annoyed at this , and Riker brings him with him and " Data " as they go to see " Lore " . " Data " approaches " Lore " and causes him to shake by using Data ' s activation switch to rapidly turn him on and off . He tells Riker and Wes to leave , saying he can ' t control " Lore " . After they leave , he kicks Data in the head in anger , causing part of his " skin " to come loose and exposing the circuitry on his skull . On the bridge , Riker tells Picard what happens , but Wes is still not convinced . The entity brushes against the shields . " Data " rushes in and says he wants to talk to it . He tells it the Humans here are powerful . It backs off , and " Data " suggests beaming something like a tree out into space and destroying it in a show of force . Picard agrees . " Data " leaves , but Wes continues to protest . Wesley tries again to convince Picard that " Data " is really Lore , but the captain refuses to listen and dismisses him , telling him to " " shut up , Wesley " . " He still orders Worf to monitor what " Data " does , since it is unusual . Beverly , just as hurt as her son , repeats in shock , " " Shut up , Wesley ? ! " " Picard dismisses her also and orders them both off the bridge . Wesley , angered , starts to complain , but Beverly fearfully adds , " " Shut up , Wesley " " herself in an attempt to protect her son from further ridicule by the rest of the crew . Worf steps into the turbolift with Lore , who then assaults him and knocks him unconscious . Meanwhile , Wes has managed to convince Dr . Crusher to stop off at Data ' s quarters . She sees he ' s hurt and switches him on . He tells her he is not badly hurt , and they go to cargo bay 3 to stop Lore . They sneak into the cargo bay and hear Lore talking to the Crystalline Entity . Lore spots Data and Wesley and threatens to kill Wesley . Beverly comes out from hiding and pulls a phaser on him , but she is too close and he grabs it from her . He then tells her to leave and Data to cooperate with him or he will kill Wesley . Dr . Crusher hesitantly makes her exit , but not before Lore fires his phaser at her , igniting the sleeve of her blue lab coat . Taking his chance , Data knocks the phaser out of Lore ' s hand and they start to brawl . Data throws him into cargo containers and then onto the transporter pad where the phaser landed . Lore fires just as Wes is able to energize the transporter , beaming him out into space . Picard , Riker , Yar , and Crusher enter with phasers drawn to find that Lore is gone . With no way to reach the crew , the Crystalline Entity leaves and Picard orders Data to get rid of the twitch and to find a proper uniform as the " Enterprise " resumes course for the computer overhaul . Memorable quotes . " " Shut up , Wesley ! " " " " Now , show me your warrior fierceness . " " " " The troublesome little man - child . " " " " If you had an off switch , doctor . . . would you not keep it secret ? " " " " AH . . . AH . . . CHOO ! " " " " How sad , dear brother . You make me wish I were an only child . " " " " Back off . . . or I ' ll turn your little man into a torch . " " " " Make it so . " " " " Sir ? " " " " Do it . " " " " He was . " " " " Lore ' s gone sir . Permanently . " " " " Have you got a cold ? " " " A cold what ? " " " Since I am finished here , may I point out that everything I said would have been listened to , if it came from an adult officer ! " Links and references . References . 2338 ; 2345 ; 2348 ; 2360 ; Altairian Grand Premier ; android ; android assembling tools ; antiseptic ; ; ; bridge ; Cargo Room 3 ; champagne ; class M ; contraction ; cruiser ; Crystalline Entity ; deactivation switch ; desktop monitor ; drawing ; Earth ; epidermal mold ; grammar ; Human language ; hypotenuse ; ; lie ; ; ; macrotool ; medical tricorder ; microscope ; Milky Way Galaxy ; mirror ; moon ; number one ; observation lounge ; ointment ; Omicron Theta ; Omicron Theta colony ; Omicron Theta system ; painting ; positron ; positronic brain ; Pythagorean theorem ; quadratanium ; ready room ; Robotics scientist ; ship ' s store ; sickbay ; sneeze ; snowflake ; ; Soong - type ; standard orbit ; Starfleet Academy ; syntax ; tic ; " Timon of Athens " ; toast ; transporter ; tricorder ; ; Tripoli landing party ; turbolift ; type I phaser ; type II phaser ; unnamed plants ; viewscreen ; VISOR Library computer references . NCC - 1700 ; Argelius II ; Bayard ' s Planet ; concussion ring ; ; deflector ; " Diana " ; ; " " ; ; hangar deck ; impulse drive ; Jewel stars ; light year ; Martian insect ; ; phaser bank ; Phi Puma ; primary hull ; secondary hull ; sector ; sensor array ; supernova ; Type 7 shuttlecraft ; ; warp nacelle