As she travels to Bajor in search of answers about her past, Kira is abducted by Cardassians, surgically altered, and told she is the missing Obsidian Order deep-cover operative, Iliana Ghemor.

Sisko, Jake, and O'Brien accidentally trigger an old Cardassian security system that believes DS9 has been taken over in a Bajoran workers' revolt and puts the entire station in lockdown.