While returning from the Gamma Quadrant the shuttle which Kira and Dr Bashir are aboard suffers from a problem with one of its engines leading to them entering the worm hole rather faster than intended. When they get through in one piece they are pleased until they see that DS9 isn't where it is supposed to be. They don't have time to wonder where it might be when a Klingon ship appears and two warriors beam aboard. These two are shocked to see Kira aboard and are very deferential. They offer to escort them back to DS9 which is near Bajor for some reason. It turns out that the accident sent them to the parallel universe first visited by Captain Kirk in the original series. Life is very different here; humans are slaves and "Intendant Kira" runs the station. Bashir is set to work in the ore refinery where he meets "Smiley" O'Brien and a slave driving Odo. The doctor and Major Kira must find a way to get back home, it is difficult for them to tell who they can trust as the counterparts of their friends are very different.
This was a fun episode that gave us a chance to see how the actions of Kirk a century ago lead to the enslavement of humanity and the rise of an alliance of the Klingons and Cardassians. Nana Visitor did a good job as the two very different versions of Kira however I think Avery Brooks is much better as the serious Commander Sisko than here where he seemed rather hammy laughing like a pantomime pirate. As this was in the mirror universe characters who would normally be safe from death can be killed... although I won't say which ones to avoid spoiling it.
This was a fun episode that gave us a chance to see how the actions of Kirk a century ago lead to the enslavement of humanity and the rise of an alliance of the Klingons and Cardassians. Nana Visitor did a good job as the two very different versions of Kira however I think Avery Brooks is much better as the serious Commander Sisko than here where he seemed rather hammy laughing like a pantomime pirate. As this was in the mirror universe characters who would normally be safe from death can be killed... although I won't say which ones to avoid spoiling it.