Profit and Loss (Star Trek: Deep Space Nine)

"Profit and Loss" is the fifteenth episode of the second season of the science fiction television series Star Trek: Deep Space Nine. The episode revolves around the arrival of two Cardassian exiles, Tora Ziyal and Ghemor, who are wanted by the Cardassian Central Command for their dissident political views.

The plot centers on Quark's past romantic relationship with Natima Lang, the leader of the Cardassian dissident movement. When Natima, along with Ghemor (her mentor) and Ziyal (Ghemor's granddaughter), arrive at Deep Space Nine seeking passage to the Gamma Quadrant, Quark is forced to confront his feelings for her and the life he left behind.

The episode explores themes of love, loss, political ideology, and moral compromise. Quark struggles with the potential danger of helping Natima and her companions, while also grappling with the resurfacing of his past feelings. The Cardassian Central Command, represented by Gul Dukat, pressures Commander Sisko to hand over the exiles. Sisko must navigate the complexities of Cardassian politics and his duty to protect those seeking refuge.

A significant element of the episode is the development of the character of Ziyal, who is later revealed to be the daughter of Gul Dukat. Her presence and subsequent character arc become a recurring theme in the series. Ghemor, a renowned Cardassian sculptor, provides a glimpse into Cardassian culture beyond its military aspect.

"Profit and Loss" is considered a notable episode of Deep Space Nine for its exploration of Cardassian culture and politics, its character-driven plot, and its contribution to the series' overall narrative arc. The episode also provides deeper insight into Quark's character, revealing a more complex and vulnerable side of the Ferengi barkeeper.