Ensign Melora (Daphne Ashbrook), an Elysian woman confined to a wheelchair due to her homeworld's lower natural gravity, is temporarily assigned to DS9, bringing with her a chip on her shoulder and a defensive attitude that the fascinated Bashir instantly finds challenging. Meanwhile, and old "friend" that Quark testified against (Peter Crombie) and had sent to prison years ago comes to the station and threatens to kill the Ferengi barkeep.
"Melora" is another small DS9 drama about unique perspectives, but this episode doesn't really seem know what it wants to say. It merely rambles with dialog scenes that don't really have any long-term significance to Melora's situation—and Melora herself thus comes off as a severely undefined character. First the story makes Melora unlikable and closed-off (she wants to be completely independent and attacks anyone who tries to give her help), then it suddenly makes her open to possibilities when Bashir far-too-easily stumbles over a medical procedure that could allow her to walk in normal gravity—an idea that, dramatically, is both too obvious and doesn't offer any interesting insights.
What really hurts are two awkward, forced Runabout scenes. One involves Dax and Melora talking about "romance in Starfleet," which feels so oddly out of place and is directed with such uncertainty that the scene seems to belong in a soap opera. The other big mistake is the finale where the bad guy from the B-plot takes Melora, Quark, and Dax hostage in a Runabout, and is resolved with the corny idea of Melora disabling the gravity to subdue him. The best summary of this ending would be to take the word "clever," find a word that means the exact opposite, and apply it appropriately.
The episode isn't awful; some of the Bashir/Melora chemistry works, particularly the scene where Bashir deconstructs Melora's sarcastic defensiveness with equally pointed remarks. But proceed with caution—this episode doesn't end up saying much of anything.