Dax confides in Sisko that she knows she is in love with her former wife. He reminds her that Trill customs mean that if they resumed their relationship, then they would be exiled from their homeworld and their symbionts would never be joined with a new host, but says that she will have his support either way. Kahn and Dax continue to work on the experiment, but it goes wrong and "Defiant" is severely damaged. Kahn is injured in the explosion, but Dax rigs a force field across a plasma fire that allows her to reach Kahn, coming to the realization that the relationship is worth exile. After returning to the station, Kahn recuperates from her injuries. She decides against resuming her relationship with Dax, and—with the experiments complete—departs with the science team, leaving Dax heartbroken.