A Kobheerian freighter arrives at the station carrying a Cardassian passenger suffering from a medical condition known as Kalla-Nohra. Upon seeing the visitor, Major Kira immediately arrests him, citing that the only place he could have contracted Kalla-Nohra was at Gallitepp, a Bajoran forced labor camp. Though he denies the accusation the Cardassian is held captive while Kira investigates his background. A photograph from Bajoran archives reveals that he is actually Gul Darhe'el, the "Butcher of Gallitepp." However, all is not as it seems when information supplied by Gul Dukat reveals that the Cardassian they are holding cannot be who he claims to be.

Harris Yulin (Gul Darhe'el/Aamin Marritza)
Marc Alaimo (Gul Dukat)
Ted Sorel (Koval)
Tony Rizzoli (Kainon)
Normal Large (Captain)
Robin Christopher (Neela)

• Marritza was surgically altered to look like Gul Darhe'el, the "Butcher of Gallitep," because he felt guilty for not being able to do anything to help the Bajorans while working as a file clerk at the Gallitep forced labor camp. He was ready to be executed as a war criminal, so that the atrocities commited by the Cardassians against the Bajorans would be publically tried. He was killed by Kainon because not because he was Darhe'el, but because "he is a Cardassian."
  
• Neela is O'Brien's new Bajoran assistant.
  
• Jake Sisko does not appear in this episode.
  
• Hands down the best (and debateably, the only watchable) episode of the season.