12 user 7 critic

Thine Own Self 

Data is sent to follow a probe that has drifted off course and crashed on a primitive planet, only to crash on the planet himself, with no memory of any event prior to crashing on the planet's surface.


Winrich Kolbe


Gene Roddenberry (created by), Ronald D. Moore (teleplay by) | 3 more credits »




Episode complete credited cast:
Patrick Stewart ... Capt. Jean-Luc Picard
Jonathan Frakes ... Cmdr. William Riker
LeVar Burton ... Lt. Cmdr. Geordi La Forge
Michael Dorn ... Lt. Worf
Gates McFadden ... Dr. Beverly Crusher
Marina Sirtis ... Counselor Deanna Troi
Brent Spiner ... Lt. Cmdr. Data
Ronnie Claire Edwards ... Talur
Michael Rothhaar ... Garvin
Kimberly Cullum Kimberly Cullum ... Gia
Mike Hagerty ... Skoran (as Michael G. Hagerty)
Andrew Benne Andrew Benne ... Apprentice (as Andy Kossin)
Richard Miro ... Rainer (as Richard Ortega-Miro)
Majel Barrett ... Enterprise Computer (voice)


During a mission to repair a probe which crashed on a planet with a Renaissance culture, an explosion damages Data bad enough to cause amnesia. He is taken in by villager Garvin and his daughter, while an arrogant teacher who puts him in her class. Before she's convinced of Data's scientific superiority by experiments, the nuclear material he carried has caused radiation sickness. Meanwhile Deanna decides to take her bridge officer exams, supervised by Riker, but keeps failing the engineering emergency test - or is it really something else? Written by KGF Vissers & Leighta Greenleaf

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TV-PG | See all certifications »

Did You Know?


The events of this episode resembles the Goiania accident in central Brazil where there was an incident of radioactive contamination. See more »


In the anvil scene, the smith is holding a long thin blade in his tongs which he works on. In the next cut - at the moment when the anvil breaks down - the blade has suddenly disappeared. See more »


Talur: You are an ice-man.
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References Star Trek: The Next Generation: Disaster (1991) See more »


Star Trek: The Next Generation End Credits
Composed by Jerry Goldsmith and Alexander Courage
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User Reviews

Data Lost
13 October 2014 | by HitchcocSee all my reviews

Something has happened to Data as he appears, with a sort of unexplained amnesia, in a pre-industrial culture that bears a resemblance to a medieval village. His appearance makes him the target of superstitious residents but endears him to a kind man and his daughter. Unfortunately, as he entered the town, he cluelessly hands over a case that contains radioactive metals. People begin to get sick and Data is blamed. He begins to work on a cure because while he can't get all his memory back, he seems to have maintained his scientific knowledge. He comes to realize that he is the true cause of the sickness and associates it with the metals he has given for a small price to a metalworker. One the Enterprise, Deanna has begun to feel she has reached a dead end and begins to study to move up to Commander in rank. Apparently, it doesn't take much to attend the bridge in a position of authority. This subplot aside, I find this a really well thought out piece of science fiction.

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Release Date:

12 February 1994 (USA) See more »

Company Credits

Production Co:

Paramount Television See more »
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Aspect Ratio:

1.33 : 1
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