Thine Own Self

The narrative opens on the Enterprise bridge, where Counselor Troi returns from a reunion, reflecting on her career path. Dr. Beverly Crusher, standing command during the night shift, informs Troi of Data's current mission: recovering radioactive material from a crashed Federation probe on Barkon Four. Beverly reassures Troi that Data will not make contact with the planet's pre-industrial society, as the crash site is far from any settlement. Troi, inspired by Beverly's command role and her own recent reflections, expresses a nascent desire to pursue the Bridge Officer's test, signaling a personal ambition beyond her counseling duties. Simultaneously, on Barkon Four, the scene shifts to a pre-industrial village at dawn. Garvin, a local magistrate, walks with his young daughter, Gia, when they discover a disoriented figure near the village entrance. This figure is Data, his Starfleet uniform torn, his combadge missing, and a large Starfleet container in hand. He attempts to speak, but only emits a distressing electronic noise, a sign of severe damage to his verbal processors. This unsettling image of Data, a technologically advanced being stranded and impaired in a primitive setting, marks the inciting incident, setting the stage for his memory loss and the subsequent contamination.

Continuing from the teaser, Garvin, initially protective of Gia, confronts the disoriented Data. Data's attempts to communicate result in garbled electronic sounds, but his non-threatening demeanor gradually eases Garvin's apprehension. As Data's verbal processors slowly repair, he regains the ability to form coherent words, though he reveals a complete loss of memory regarding his identity and past. Garvin tries to help Data, attempting to give him a name, but it is Gia who suggests "Jayden," a name Data accepts. Data recalls only walking from the mountains, a journey of significant distance according to Garvin, but nothing before that. Garvin's attention then turns to the container Data carries. Data, seemingly noticing it for the first time, cannot identify it. Garvin takes the container, observing its Starfleet logo and a radiation symbol, along with the word "RADIOACTIVE." Data reads the word aloud but does not comprehend its meaning, even suggesting it might be his name. Unaware of the inherent danger, Garvin fumbles with the latches and opens the container, exposing himself and the village to the twisted, burned metal fragments inside, unwittingly initiating the spread of contamination.

On the Enterprise, Troi visits Riker, expressing her intention to take the Bridge Officer's test and become a commander. She cites various inspirations, including Beverly's example and her own experience commanding the bridge during a past crisis. Riker, while supportive, warns her of his strict judgment as her evaluator. Meanwhile, on Barkon Four, Talur, the village healer, examines Data. She dismisses his unusual appearance—pale skin and gold eyes—as characteristics of an "ice-man" from the Vellorian Mountains, attributing them to prolonged exposure to harsh conditions. Talur confidently diagnoses Data with memory loss but no other illness, showcasing her self-important and limited understanding of his true nature. Gia then names Data "Jayden," a name he accepts. Garvin, now calling him Jayden, consults Skoran, the village blacksmith, about the metal fragments. Skoran, initially suspicious of Data, examines the metal, noting its unusual luster and malleability, and agrees to purchase half the fragments for jewelry. During their discussion, the wooden base of the anvil inexplicably collapses, trapping Skoran's apprentice. Data, without hesitation, effortlessly lifts the heavy anvil, revealing his superhuman strength to the stunned villagers and further alienating him as an outsider. Later, Garvin experiences fatigue, the first symptom of radiation poisoning, which Talur misattributes to a need for fresh air. Data, during dinner, challenges Talur's unscientific theories, displaying his inherent logical and empirical nature, further establishing his unique perspective in the pre-industrial society. Gia, sharing a painful memory of her deceased mother, finds comfort in Data's words, as Data himself is drawn to the night sky, a subconscious connection to his true origins.

Troi undergoes a challenging Engineering Qualification test on the holodeck, simulating a red alert crisis on the Enterprise. Despite her efforts, she fails to prevent the ship's destruction, leading to a frustrating debrief with Riker. He refuses to disclose her error, emphasizing that a Bridge Officer must discover solutions independently, leaving Troi annoyed and determined. Concurrently, in the Barkonian village, Data attends Talur's class, where she teaches a rudimentary theory of elements. Data, unable to reconcile her teachings with his innate knowledge, respectfully challenges Talur's reasoning, arguing for empirical evidence over superficial observation. Talur, irritated by his intellectual dissent and his perceived memory deficit, dismisses his "ideas" and asserts her authority. Shortly after, Data and Gia witness a heated argument between Garvin and Skoran over the payment for the metal fragments. Garvin, now wearing a metal pin made from the fragments, suddenly collapses, displaying blotchy, blistered skin—clear signs of radiation poisoning. Talur examines him, admitting her unfamiliarity with the symptoms, though she notes "burn marks" and overheating. Data, observing Talur's primitive microscope, recognizes its potential for greater magnification. With Garvin's permission, Data resolves to conduct his own scientific investigation into the illness, enlisting Gia's help to gather supplies. As they leave a shop, Skoran and a group of villagers confront them, openly blaming Data for the spreading sickness. The villagers' mood turns hostile, forcing Data and Gia to retreat from the escalating accusations, highlighting Data's growing isolation and the community's fear.

Data transforms Garvin's dining room into a sophisticated laboratory, utilizing homemade equipment, including a refined microscope. He studies tissue samples from Garvin and Gia, who now exhibits symptoms of the mysterious illness. Talur, astonished by Data's advanced instruments, observes his work. Data explains his scientific methodology, ruling out infection and seeking a common, recent, and unusual causal factor for the illness. Talur, still clinging to her limited understanding, suggests Data's arrival as the only unusual commonality. Data considers this possibility but dismisses it due to Talur's own lack of symptoms despite extensive contact. As Gia enters, visibly ill, Data notices the metal pendant she wears, realizing it was crafted from the radioactive fragments he sold to Skoran. This observation provides Data with a critical breakthrough, pinpointing the source of the spreading sickness. Simultaneously, Riker cancels Troi's Bridge Officer's test, convinced she is not suited for command, sparking her anger and determination. Defying Riker, Troi re-enters the holodeck simulation, facing the same crisis. This time, she makes the agonizing decision to order Geordi into a warp plasma shaft, a fatal act necessary to save the ship. Riker appears, confirming she passed, explaining the test's true purpose: the capacity to make "the hard choice." Back in the village, Data demonstrates his theory to a skeptical Talur, using a luminescent screen to show invisible particles emanating from the metal pendant, which are blocked by the Starfleet container. He deduces the metal is "radioactive" and dangerous, instructing Talur to collect all fragments. As Talur leaves, Skoran and two men, armed and hostile, confront Data. During the ensuing struggle, Data's skin is torn, revealing his metallic endoskeleton. The men recoil in horror and flee, leaving Data to confront his android reflection, shocked by the revelation of his true identity.

In Garvin's home, Skoran, fueled by fear and prejudice, incites the villagers to hunt Data, branding him a dangerous "creature," despite Garvin's weak protestations from his sickbed. Talur departs, leaving Gia to tend to her father. Data, his exposed metallic face partially concealed by a scarf, appears to Gia, admitting his uncertainty about his identity but affirming his desire to help. Gia, though initially recoiling from his true visage, reaffirms her trust in him. Data works frantically for several hours in his makeshift lab, finally discovering a compound that neutralizes the harmful particles causing the illness. He administers this cure to a recovering Garvin and a visibly improving Gia. Recognizing the villagers' fear and distrust, Data decides to pour the potent compound into the village well, their sole water source, ensuring everyone receives the cure. He heads to the deserted town square, but Skoran and a mob of armed, feverish villagers intercept him. Despite their accusations and threats, Data manages to fling back the well cover and begins pouring the liquid. Skoran, in a desperate act, impales Data with a spear, causing sparks to fly from his back. Data, with his final act, empties the bucket into the well before collapsing and dying. Talur arrives, finds Data dead, and examines the empty bucket, a somber testament to his sacrifice. Later, Riker and Beverly, disguised as natives, arrive in the now-healthy village. They encounter a fully recovered Gia, who points to Data's crude grave, explaining he, whom they called Jayden, saved them from the sickness caused by the metal fragments, which were subsequently buried. Riker and Beverly, realizing the extent of Data's heroism, use a tricorder to confirm his deactivated state and plan to beam him and the probe fragments back to the Enterprise. On the ship, Data is reactivated but has no memory of his time on Barkon Four or his heroic sacrifice. He notes Troi's new Commander pips, puzzled by her promotion, his own profound journey and ultimate selflessness now erased from his memory.