When Quark lies about killing a Klingon in his bar, he is pulled into a power struggle between rival Klingon families on Qo'noS and forced to marry the dead man's widow. Meanwhile, Chief O'Brien must confront the fact that Keiko gave up her career to join him on DS9.

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.