A mishap in the wormhole sends Kira and Bashir into an alternate universe where Bajor is a tyrannical power ruled by Kira, and humans are ore-mining slaves.

Andrew Robinson (Elim Garak)
John Cothran, Jr. (Telok)
Stephen Gevedon (Klingon)
Jack R. Orend (Human)
Dennis Madalone (Marauder)

• This episode is a "sequel" to the original Star Trek series episode "Mirror, Mirror".
  
• The Terok Nor Alternate Universe story continues in the episode "Through the Looking Glass". (Terok Nor is the Cardassian name for Deep Space 9.)