Star Trek: Deep Space Nine

Season 2 Episode 23


Aired Weekdays 11:00 AM May 15, 1994 on Syndicado
out of 10
User Rating
163 votes

By Users

Episode Summary

Stardate: 47879.2 An accident, which occurs while traveling through the wormhole, leaves Kira and Bashir stranded in an alternate universe where humans are slaves.

Who was the Episode MVP ?

No results found.
No results found.
No results found.
  • A homage to the past and foundation for the future

    When "Mirror, Mirror" first aired in 1967, who would have thought we'd have to wait twenty seven years for a sequel?

    Unlike sister show TNG, DS9 is quite comfortable from the get-go acknowledging the original Star Trek stories, and this episode kicks off a total of five Deep Space Nine episodes set in the mirror universe. "Crossover," a Kira episode to say the least, might be the best, with the cast (much like Shatner & company) having a blast with their new roles. (As Kira says, "The players are all the same, but everyone seems to be playing different parts") The fun spills into the episode, and the result is simultaneously an homage to the past and a foundation for the future.

    Director David Livingston deserves a special award for "best direction of an actor in a dual role", as no other Star Trek episode doubles up a character so believably. It's easy to watch the two Kiras in "Crossover" and forget that there weren't two Nana Visitors on set.

    It's just too bad that the episode's ending is a foregone conclusion from the start!

  • A nice sequel to TOS Star Trek episode "Mirror Mirror"....

    Taking place within a context set by the original Star Trek television series episode "Mirror, Mirror," "Crossover" is a very good Star Trek: Deep Space Nine episode and a nice follow-up to its predecessor. In "Mirror, Mirror," a transporter accident takes Kirk, Bones, Scotty, and Uhura into a mirror universe where humans are savage and violent, ruling a vast empire with an iron fist. Kirk gets to the mirror version of Spock and, with his help, the four escape back to their own timeline. In the DS9 episode "Crossover," Kira and Bashir land in this mirror universe 100 after Kirk did when their shuttle craft does not come out of warp properly before entering the worm hole. Here, they learn that Kirk got to the mirror Spock and a series of Spock-initiated reforms of peace ended the Terran Empire - however, an alliance between the Cardassians, Klingons, and Bajorans conquered what used to be the Terran Empire and enslaved the human race. Kira and Bashir come back to a completely different Deep Space 9.

    "Crossover" is a nice sequel to my favorite original Star Trek series episode and is a good stand-alone episode in its own right. Each cast member milks their against-type character turns - with Avery Brooks giving the most strikingly different portrayal of his character and Colm Meaney continues to show why he is the best actor in DS9 and one of the best actors in the entire 5-show Trek series with a very charming turn as an oppressed O'Brien and a particularly moving final speech. The episode wraps up a little too fast and there is an awkward moment between Bashir and Kira that fails in what was no doubt an attempt at humor, but "Crossover" is a very good episode overall.moreless
  • The first, and best, Mirror Universe episode.

    Unlike almost every other facet of the show, DS9's mirror universe episodes got worse during the series' run and were pretty weak at the end. But this first episode is exceptionally good - it goes beyond the mere gimmick of "similar but different" to offer something genuinely substantial.

    There's humor here - Bashir hitting on Kira, Mirror Garak admiring tailoring, Odo exploding. And the actors (particularly Nana Visitor) have great fun playing against type.

    But really, it's the climax at the party, where Smiley O'Brien gives his impassioned speech, that makes the episode. That's what I meant when I said there was substance here. Colm Meaney rocks.moreless
Armin Shimerman

Armin Shimerman


Terry Farrell

Terry Farrell

Lt./Lt. Commander Jadzia Dax (Season 1-6)

Rene Auberjonois

Rene Auberjonois

Constable Odo

Nana Visitor

Nana Visitor

Major/Colonel/Commander Kira Nerys

Avery Brooks

Avery Brooks

Commander/Captain Benjamin Sisko

Alexander Siddig

Alexander Siddig

Dr. Julian Bashir

Trivia, Notes, Quotes and Allusions


  • TRIVIA (3)

    • The Intendant, Smiley and the mirror Garak are the only mirror universe characters to appear in all of the mirror universe episodes that take place on their side of the wormhole.

    • This episode marks the first appearance of the mirror universe on Star Trek: Deep Space Nine.

    • Nitpick: When Kira and Bashir emerged from the wormhole in the mirror universe, it took them three hours to reach the station as it orbited Bajor. As they escaped the station and headed home, they reached the wormhole in seconds.

  • QUOTES (7)

    • Kira: (learning Mirror Sisko is a freebooter for the Intendant) And why do you deserve this special treatment?
      Mirror Sisko: I suppose because I amuse her, and she's not easily amused. And it seems that you amuse her, too.

    • Mirror Garak: (as Quark is dragged away for execution) I shall miss him. He always let me win at Dabo.

    • Smiley O'Brien: (to the Intendant) This man is a doctor where he comes from. And there's an O'Brien there, just like me... Except he's some kind of high-up chief of operations. And they're Terrans. Can you believe that? Maybe it's a fairy tale he made up, but it started me thinking how each of us might have turned out, had history been just a little different. I wanted him to take me with him because, whatever it's like where he's from, it's gotta be better than this. There's got to be something better than this.

    • Mirror Sisko: What do you care about Terrans' freedom?
      Kira: I care about freedom! What I don't understand is why you don't care. Why the only one I have met on this station who seemed to give a damn was a Ferengi toad named Quark!

    • Intendant: I know very little about where you come from, but from what I've heard, I think your kind has a lot to learn.
      Bashir: (defiant) We've got a lot to learn?! That's a laugh.
      Intendant: Quiet! On this side, Terran workers do not speak to their superiors as you do. They certainly do not murder them!! He was the only one of his kind, the man you killed. Do you realize that? He is irreplacable. No one ran that operation as efficiently as he did. No one kept order among the workers as he did. This is my reward for treating you Terrans with the least respect? Very well. I can learn for my mistakes. You want to set an example, Garak? Use him. Set an example. For all Terrans. Let him die slowly in public view on the Promenade. Let his arrogant Terran voice pleading for mercy echo through the corridors for all Terrans to hear!

    • Intendant: Have you lost your mind?!
      Mirror Sisko: No, I didn't lose it. I just... changed it.

    • Kira: I am Kira Nerys.
      Intendant: That makes two of us.

  • NOTES (3)


    • Major Kira: Through the looking glass, Commander.

      Through The Looking-Glass, And What Alice Found There is an 1871 children's novel by Lewis Carroll. It is nominally a sequel to Carroll's previous work, Alice's Adventures In Wonderland, although there is little by way of connection. In the story, Alice passes through a mirror and into a world that is in many ways the opposite of her own, much as Kira and Bashir do when their damaged runabout passes through the wormhole.

  • 9:00 pm
    What Would You Do?
  • 10:00 pm
    Dateline NBC