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The crew of the Enterprise enters into orbit around the home planet of their former crewmate, Tasha Yar, where they encounter her sister.


Robert Scheerer


Gene Roddenberry (created by), Joe Menosky | 2 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
Wil Wheaton ... Ensign Wesley Crusher (credit only)
Beth Toussaint ... Ishara Yar
Don Mirault Don Mirault ... Hayne
Colm Meaney ... Chief Miles O'Brien
Vladimir Velasco ... Tan Tsu
Christopher Michael ... Coalition Man #1


The Enterprise aborts an archaeological mission, responding to an emergency call from the devastated colony on the home planet of deceased crewmate Tasha Yar, Turkana IV. There two Federation officers are held hostage, captured from an escape pod, by the Alliance which has been fighting for decades against a rebel party, the Coalition, which includes Tasha's sister Ishara Yar, who seems prepared to sacrifice anything necessary to help rescue the officers, and wins Data's friendship, but came with a secret agenda. Written by KGF Vissers

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TV-PG | See all certifications »

Did You Know?


This takes place in 2367. See more »


When Ishara is describing the Alliance fusion source to Data on the bridge, she points to the computer to show him the locations of various entry points to a specific chamber on the cartographic display. In the reflection on the monitor, you can very clearly see that Ishara's lips are not moving as she continues to speak. Furthermore, the actors portraying both Data and Ishara appear to be possible stand-ins for Brent Spiner and Beth Toussaint respectively. See more »


Hayne: There's an old saying, Captain: The enemy of my enemy is my friend.
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References Battleship Potemkin (1925) See more »


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

Is There a Greater Good?
22 August 2014 | by HitchcocSee all my reviews

In an effort to save a couple crewmen from a fellow Starfleet ship that has become involved in a civil war on a planet that turns out to be the birthplace of Tasha Yar. The civil war has led to great violence, including the slaughter of trespassers. One group, the Alliance,has held the other at bay. It turns out that Tasha Yar's sister is an insurgent rebel. She is brought on board the Enterprise and joins them in rescue efforts to save the two men trapped below the planet. The leaders of the alliance give an ultimatum and the Enterprise must act. Ishara Yar masterfully gains the trust of the crew and is given great latitude in the rescue operation. During this time she is very critical of her sister. Data informs her of Tasha's great character and bravery. It seems the war on the planet excludes any sisterly affection and Ishara felt that Tasha took off rather than fight. I really believe that the show went for more believable encounters and actions. This is one of those that shows us that the writers were really gaining steam.

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Release Date:

27 October 1990 (USA) See more »

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Production Co:

Paramount Television See more »
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Aspect Ratio:

1.33 : 1
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