ST:DS9, Meridian, 308
Sisko inexplicably decides to take the Defiant on a pleasure cruise to the Gamma quadrant, ignoring the imminent Dominion threat. During which, a planet suddenly appears out of another dimension, and happen to be friendly enough neighbors to invite the senior crew of the Defiant to a picnic.
Dax, for some reason, becomes interested in a man from the planet. It's the same old story: star-crossed lovers, each from a different dimension, falling madly in love with each other. Dax even goes so far as to change her molecular structure to be with him. But physics gets the best of her.
Meanwhile, back at the station, Quark tries surreptitiously holo-filming Major Kira at the request of one of his creeper customers. Quark succeeds, but not without alerting Odo and Kira to his activities. Hilarity ensues when we see Kira in sultry evening-wear, but instead of her own head, Kira and Odo replace holo-Kira's head with Quark's. Quark loses his customer.
Thank you, Jonathan Frakes, for directing this masterpiece.