Star Trek: Deep Space Nine: Season 4, Episode 21

For the Cause (6 May 1996)

TV Episode  |   |  Action, Adventure, Drama
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Ratings: 7.7/10 from 406 users  
Reviews: 2 user | 1 critic

Sisko must face betrayal when evidence surfaces that Kasidy is smuggling for the Maquis. Meanwhile Garak makes acquaintance with Ziyal.



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Title: For the Cause (06 May 1996)

For the Cause (06 May 1996) on IMDb 7.7/10

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Episode cast overview:
Michael Eddington (as Kenneth Marshall)
Steven Vincent Leigh ...
Lt. Reese


Deep Space Nine awaits the secret arrival of 12 industrial replicators for the Cardassian government. Sisko fears the Maquis might do something about it and increases security. Eddington and Odo have an unpleasant message for him however. They suspect Kasidy Yates is involved in smuggling for the Maquis. Sisko is angry about the accusation at first. He refuses to let Odo survey her, but finally agrees to a cargo check. Then Kasidy asks him to skip the inspection. Sisko agrees, but sends the Defiant after her. Meanwhile Garak can't keep his eyes of Ziyal and she returns his looks with a smile every time. Garak is still wary though. She is after all the daughter of his archenemy Dukat and under the protection of Kira, who isn't too fond of the tailor either. Then Ziyal offers him a meeting in a Cardassian holosuite program. Written by Arnoud Tiele (

Plot Summary | Plot Synopsis

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24th century | See All (1) »





Release Date:

6 May 1996 (USA)  »

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Aspect Ratio:

1.33 : 1
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Did You Know?


This is the only time when Tracy Middendorf played Ziyal, daughter of Gul Dukat. Cyia Batten had played the character previously, and Melanie Smith took over the role later in the series. See more »


The scene in Garak's shop, Quark tells him that his pants are, "a meter too long." A meter is about 3 feet 3 inches and Quark is only 5'6", so this is either a goof in dialogue or Quark wants some short-shorts. See more »


[first lines]
Captain Sisko: Kasidy Yates, where are you going?
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Star Trek: Deep Space Nine - Main Title
Written by Dennis McCarthy
Performed by Dennis McCarthy
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User Reviews

Is Kasidy a traitor?
3 January 2015 | by (Bradenton, Florida) – See all my reviews

When the show begins, you learn that some replicators are being secretly sent to the Cardassians by the Federation. Commander Eddington and Odo also approach Captain Sisko with a problem. They think that there's a good chance that Sisko's girlfriend, Kasidy Yates, is working with the Maquis*. But Sisko isn't about to just accuse her and he and his folks keep tabs on her and her space voyages. However, it turns out that this is all a ruse--and Eddington has ulterior motives. But what exactly is he up to?!

In addition to this plot, Mr. Garak has taken time away from his bromance with Dr. Bashir to may a lot of attention to Dukat's daughter, Ziyal. But this relationship, if there is one, is obviously fraught with problems since Dukat and Garak are sworn enemies.

Overall, this is a pretty exciting episode--mostly because it isn't stuck on DS9. Unfortunately, Eddington's behaviors were telegraphed in many ways, so none of this came as a huge shock--he obviously was never intended as a regular or one of the 'good guys'--a serious weakness of the show.

*Oddly, near the beginning of the show when Worf talks about the Maquis, he refers to them as the 'Marquis'.

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