Crossover

Stardate not given: When a Runabout’s warp field doesn’t completely shut off as it enters the wormhole, Kira and Bashir are detoured into an alternate universe generated by the consequences of previous travelers’ interference. The station, still operating under its Cardassian name Terok Nor, and Intendant Kira Nerys lords over the station and its inhabitants with the help of first officer Garak and her Klingon cronies. Bashir is immediately forced to labor in the ore processing facility, while Kira meets her tyrannical, avaricious counterpart. Sisko and O’Brien are also to be found in this universe, as downtrodden humans living lives of virtual slavery under Kira’s whip. Treachery abounds aboard the station, and Kira and Bashir can only try to play all sides against each other in order to find a way back to their own universe.

teleplay by Peter Allan Fields and Michael Piller
story by Peter Allan Fields
directed by David Livingston
music by Dennis McCarthy

Cast: Avery Brooks (Commander Benjamin Sisko), Rene Auberjonois (Odo), Siddig El Fadil (Dr. Julian Bashir), Terry Farrell (Lt. Jadzia Dax), Cirroc Lofton (Jake Sisko), Colm Meaney (Chief O’Brien), Armin Shimerman (Quark), Nana Visitor (Major Kira Nerys), Andrew Robinson (Garak), John Cothran Jr. (Telok), Stephen Gevedon (Klingon #1), Jack R. Orden (Human), Dennis Madalone (Marauder)

Notes: Kira’s alter-ego explicitly states that this universe is indeed the same one that Kirk and his crew visited in the classic Trek episode Mirror, Mirror. The “Mirror Universe” would be revisited in several later Deep Space Nine episodes as well as the Enterprise two-parter In A Mirror Darkly.