Star Trek: Deep Space Nine: Season 3, Episode 4

Equilibrium (17 Oct. 1994)

TV Episode  -   -  Action | Adventure | Drama
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The Trill homeworld is the setting, as Sisko and Bashir take Jadzia home for treatment when she begins experiencing hallucinations after playing a tune she can't recall.



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Title: Equilibrium (17 Oct 1994)

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Episode cast overview:
Doctor Bashir (as Siddig El Fadil)
Chief O'Brien (credit only)
Doctor Renhol
Jeff McBride ...
Joran Belar (as Jeff Magnus McBride)
Nicholas Cascone ...
Harvey Vernon ...


At a Sisko house party, Jadzia sees a musical instrument. While she claims none of the hosts had even the slightest musical ability, she is able to get music out of it. She plays a tune and is frustrated she can't get it right. She gets obsessed by it, has trouble concentrating and starts behaving violently. When she gets hallucinations of a masked man that looks familiar, she is even more determined to find out what the music is and Sisko suggests running it through the Federation database. Then Bashir discovers Jadzia's isoboramine levels are down, a neurotransmitter between host and symbiont. Bashir has no clue why and he sees no other alternative than to take her to Trill, where the doctors of the Symbiosis Commission will examine her. Written by Arnoud Tiele (

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Release Date:

17 October 1994 (USA)  »

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Aspect Ratio:

1.33 : 1
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Did You Know?


This takes place in 2371. See more »


Lieutenant Jadzia Dax: Joran.
Joran Belar: You know who I am.
Lieutenant Jadzia Dax: You're part of me.
See more »


Star Trek: Deep Space Nine - Main Title
Written by Dennis McCarthy
Performed by Dennis McCarthy
See more »

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User Reviews

Where was Verad?
2 September 2013 | by (United States) – See all my reviews

As we recall, in Season 2 Episode 4, DAX was accosted by a sniveling bean counting pencil pusher named Verad who used a Jem Ha'Dar-style woman named Mareel to steal the DAX Symbiote and try to escape to the Gamma quadrant.

Fortunately, Dr Bashir and Quark were able to release Odo from a locked BUCKET, and between Odo stopping the other cronies and The Sisko convincing Mareel that "her" Verad no longer existed, Jadzia was saved from dying of a Symbiote-Ectomy.

And now it is exactly one year after those events... And something is not quite right in Jadzia - Or is it DAX?

At first, she picks up Jake's electronic Piano and starts fiddling with a melody. She quickly becomes obsessed with it, humming the melody and not remembering. Then she starts acting very Un-Jadzia-like, snapping at The Sisko and accusing him of cheating in 3 Dimensional Chess.

And she begins to have hallucinations of Masked figures who have even more masks underneath... and some unknown Trill Security Guards. So The Sisko and Doctor Bashir decide to bring Jadzia back to Trill, a visit to "The Symbiosis Commission" where they run some tests.

The tests confirm that Jadzia is low on a particular kind of Symbiote-Goop, dangerously low. Some Trill Symbiote-Dope helps and they go visit the keepers of the Symbiotes in the caves beneath the complex.

Nicholas Cascone who was in the second season Next Generation episode "Pen Pals" - Is a tender for the Symbiotes-He sees right away that something is wrong. His explanation, "the Host is not Playing Fair" - only brings up the question "Which Host?"

When the Defiant computer identifies the Music and the Trill Composer of the Music, Jadzia goes into convulsions and neural shock when she sees his picture.

Is there some agenda on the Trill Homeworld? The Sisko and Bashir are blocked at every turn when they try to investigate. The Symbiote tender will no longer talk to them and refuses to admit what he had told them just one day earlier. But some startling facts erupt when they interview the brother of the author of the musical piece Jadzia was playing and humming - A Trill who had killed members of the Symbiosis Board.

And an even deeper mystery erupts when they find Trill records that have been wiped - Who was the Dax Host prior to Curzon?

Not who the Symbiosis Commission records show, there seems be a missing Host.

In the end, The Sisko is not interested in revealing a startling fact about how many potential Hosts are on Trill... His only concern is saving Jadzia. And the threat of The Sisko broadcasting this information on a planetary scale is enough to make the Commission see reason and let Jadzia be fixed, or rather Dax be fixed.

The memory of something bad had been erased from the Dax Symbiote. But you can't just delete bad memories, they will always resurface. In the end, a memory removed from the Dax Symbiote threatens to be Fatal to the Jadzia host-So the two must be reconnected and reacquainted.

When Jadzia had her Zhian'Tara - The Trill Ritual where she is able to physically meet all of her previous "Hosts" - This one Host was no longer forgotten and took his place in the legacy of Dax.

The only Host that was missing from the Zhian'Tara was Verad. Perhaps he was so small and unimportant to the gestalt of the Fellowship of Dax Hosts that he could be easily forgotten with no Harm done. He was after all, not mentally sufficient enough to be a real Host. But perhaps his invasive assault on Jadzia was the catalyst which propelled this new hidden ugliness to surface.

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