The station goes into lockdown and the crew is endangered when an old Cardassian security program is accidentally activated.



(based upon "Star Trek" created by), (created by) | 2 more credits »

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Episode cast overview:
Dr. Julian Bashir (as Siddig El Fadil)


O'Brien and Jake are preparing one of the old ore processing units to convert it for use as a deuterium refinery. Sisko checks up on them, just as Jake finds a strange file in the database which can't be deleted. O'Brien accidentally trips a Cardassian security alert, and must enter a password, but fails. Suddenly, the room's locked down, and a recorded message from Gul Dukat appears on view screens, warning the 'Bajoran workers' to surrender, or face consequences. But their troubles, and that of the station's, are far from over. Written by Arnoud Tiele (

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24th century | See All (1) »





Release Date:

7 November 1994 (USA)  »

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Sound Mix:


Aspect Ratio:

1.33 : 1
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Did You Know?


This is the second time in the series that a hidden device or program on Deep Space 9 causes mayhem on the station; the first time was the aphasia device planted by Dekon Elig in DS9: "Babel". See more »


When Jake is crawling through the ore chute and Sisko and O'Brien are talking with him, when they tap their communicators the activation sound is consistent with Bajoran communicators, not Starfleet. See more »


Quark: Should've listened to my father. He always warned me this was gonna happen.
Odo: What? That you'd spend your final hours in jail? I could have told you that.
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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

you might want to pass on this one
27 April 2012 | by (United States) – See all my reviews

As I write, this has a 7.8 IMDb scoring, but it's not a very good episode IMHO. Station goes into lock-down, based on an old Cardassian program in case of a Bajoran worker revolt. Which is a pretty cool idea. Then, for dramatic tension, the self-destruct countdown starts. Sound familiar? And later on, air shafts (aka, utility shafts) come into use. Aah, air shafts, the writer's best friend. There is a very clever complication about halfway through, which I enjoyed, and you might watch it for that. But otherwise this one runs just by the numbers. Just imagine what it would be like and save yourself forty minutes. If you love the show, it will be all right, but I'd recommend skipping to a better episode.

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