science team of Trills comes to visit the station to do a test on creating artificial wormholes. The leader of the team is Dr. Lenara Kahn, a joined Trill. The former host of the Kahn symbiont was Nilani. She was the wife of Torias, one of Dax's former hosts. On Trill, it is strictly forbidden to re-associate with a past lover. The punishment is exile, meaning the symbiont will die. To avoid problems, Sisko offers Jadzia Dax to take extended leave. She denies and thinks she's up to the task. But when Jadzia and Lenara start working on the science project, they both seem to get along really well. While they try deny it at first, the romantic spark between them isn't gone.

Résumé de IMDb.com