Both the on-station and off-station plots are exceptionally strong here.
The Sisko story is in many ways a sequel to "The Ship" (with a nod to "Hippocratic Oath"). Again, the crew is stranded on a planet and forced to contend with a Vorta and his detachment of Jem'Hadar. Kivan is a nice addition - a completely smarmy example of pure, treacherous evil who the good guys are nevertheless forced to team up with against a "noble warrior" Jem'Hadar. Life is full of moral compromises. It's worth mentioning that this on-planet story is beautifully shot, particularly the prisoner exchange sequence. And of course, who can forget what happens when O'Brien tears his pants?
Back on the station, we discover Kira struggling with her new role. As always, she's a good person trying to do the right thing - but it's difficult to figure out where the line between protecting her people and collaborating really lies. The protest-suicide of the Vedek is absolutely shocking - and breaks her out of her complacence, though though can't help wondering whether Kira's decision to fight the dominion is anything more than moral vanity.