Transporting three Ullian mind-probing historians, the Enterprise crew is stymied when some of its members fall into a coma. Deanna Troi, the first crew member to come through it, cannot recall anything surrounding the incident.



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Episode cast overview:
Ben Lemon ...
David Sage ...
Dr. Martin
Craig Benton ...
Crewman Davis


On a mapping journey the Enterprise hosts a party of Ullian 'mind historians', specialists who telepathically retrieve people's long-forgotten memories from many races. Keiko O'Brien and Dr. Crusher enjoy resuscitating pleasant memories, but the Ullian leader Tarmin's frustratingly overbore son Jev abuses his abilities on non-volunteers, against their code, and enters their thus nightmare-altered memories as a key character, leaving Troi and Riker in an apparently unprovoked coma which only resembles the rare neurosis irizine, without the associated histamine level change. Then it happens to Crusher the bad way, but Troi wakes up after three days, alas with a total black-out. After eliminating any other imaginable cause, Picard has to suspect the Ullians, Troi accepts a memory probe by Jev, who makes her believe it's Tarmin's doing, but Geordi and Data do some research... Written by KGF Vissers

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Release Date:

1 February 1992 (USA)  »

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Aspect Ratio:

1.33 : 1
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Did You Know?


The writing staff created memory flashbacks for every major character before Riker, Troi and Beverly were chosen. One involved Ensign Ro's actions resulting in a court-martial. Another was La Forge's traumatic childhood memory of being caught in a fire, which was used in the previous installment Star Trek: The Next Generation: Hero Worship (1992) instead. See more »


This entry originally stated that, when Jack Crusher died, he and Picard wore the older red tunic uniforms, as seen in Star Trek: The Next Generation: Family and subsequently Star Trek: The Next Generation: Journey's End. Yet, in Dr. Crusher's memory, Picard is wearing the uniform from Season 1 and 2. This is because the uniform Jack Crusher wore when recording the holomessage, as seen in Star Trek: The Next Generation: Family, was likely replaced by the Season 1/2 uniform before his death - the appearance of the older uniform during Wesley's vision quest in Star Trek: The Next Generation: Journey's End may have been subconciously triggered by Wesley's memory of viewing the holomessage, and may not be an accurate reflection of the uniform in use at the time Jack Crusher died. See more »


Lieutenant Worf: Klingons do not allow themselves to be... "probed".
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References Star Trek: The Next Generation: Shades of Gray (1989) See more »


Star Trek: The Next Generation Main Title
Composed by Jerry Goldsmith and Alexander Courage
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User Reviews

Bizarre Episode to Say the Least
2 September 2014 | by (United States) – See all my reviews

This episode pushes some boundaries. Other than implied sexual encounters done with a wink, this subject is sort of left out of this series. The holodeck presents interesting possibilities but it makes one wonder if there are limits on the programming. Just like Mom checking your computer history. In this episode a trio of aliens comes to probe the minds of Enterprise crew members for historical purposes. A database is being put together by these figures. Keiko is led through a childhood memory, leading to some wonderful experiences. The youngest member of the trio, a leering guy, seems conflicted with his know-it-all father. Shortly after they've finished their session, he walks Troi back to her quarters. After he departs, she begins to experience what seems to be a rape, which culminates in her lapsing into a coma. She sees the face of Riker over her and that transforms into the son, Jev. These comas attack Riker and Crusher after Deanna, each experiencing a scene of intense violence where they seem to be at fault. The captain suspects that their guests have something to do with this, but he must also be diplomatic since there has been no "physical" presence, only in minds of the victims. Because I never understood the real calling of these people, when it ended I was left cold. A somewhat confusing episode.

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