The Enterprise encounters a mysterious void in space and when they move in closer to investigate further, it envelops them and they can't get out.



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Episode cast overview:
Nagilum (voice)
Charles Douglass ...


While en route to the Mogana quadrant, the Enterprise comes comes across a unique phenomena for the first time. It appears as a black void, with no matter or energy readings of any kind. As the Enterprise approaches the entity, it envelops the ship completely. They find however that they are unable to leave and when a Romulan vessel suddenly appears, Picard and the crew realize that something is amiss. Unable to move or leave and facing a lifetime as a prisoner of Nagilum, who wishes to experiment on them, Captain Picard decides there can be only one solution to set them free. Written by garykmcd

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Release Date:

26 November 1988 (USA)  »

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Aspect Ratio:

1.33 : 1
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Did You Know?


The title is from the Robert W. Service poem "The Spell of the Yukon." See more »


When Picard and Riker set the auto-destruct, the computer asks for a time interval, and after a spirited discussion, they set the time for 20 minutes. In Star Trek: The Next Generation: 11001001, the time interval was set by the computer at five minutes, which suggests that this was the standard interval, and, at the time, their only option, given their situation. It does not suggest, however, that the interval cannot be altered as desired under any circumstances. See more »


[first lines]
Counselor Deanna Troi: You're worried.
Capt. Picard: With reason.
Counselor Deanna Troi: About Worf or Commander Riker?
Capt. Picard: Both. I think it is perhaps best to be ignorant of certain elements of Klingon psyche.
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References Uchû senkan Yamato (1974) See more »


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

Another "Godlike species that can do anything" episode
24 February 2016 | by (Brandywine, MD) – See all my reviews

In all of the incarnations of Star Trek, the crew of the Enterprise run into species that can instantaneously conjure up complete facsimiles of Earth/Federation existence, and do so for unfathomable reasons.

In general, these entities want to test humanoids, for their worthiness, and humanoids are "curious" because they have indomitable wills, which, apparently, are unique to earth humans.

This is just another example of the superior species test of humans/Vulcans/Klingons. We don't learn much new from this one.

1. Humans still don't pick up any new technology tips, after all of these exposures. 2. You would think they would look for an alliance with one of these super duper species. 3. As usual, the Captain, whether it is Kirk, or Picard, earns the grudging respect of the superior alien. 4. We learn the superior race's ethics are questionable and our conventional morality is probably superior. Go us. 5. Star ship captains are the most interesting subjects for superior beings.

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