The weakest of the overall stellar three-parter wraps the plot up nicely, but unlike the first two parts there's more a sense that the story's events were pre-planned by a writing team than they followed inevitably from the setup of the story.
"The Siege" documents a Bajoran coup d'état that backs the Circle's planned takeover of Bajor. The military operation is led by General Krim (Stephen Maght) who plans to take control of the station. Since internal Bajoran politics are out of the Federation's hands and the Circle's coup wants nothing to do with the Federation, Starfleet Command orders Sisko to evacuate all Starfleet personnel from the station. Sisko evacuates his crew, but hides himself and his team on the station to delay Krim's forces long enough so that Kira and Dax can deliver crucial proof of the Cardassian involvement to the Bajoran Chamber of Ministers.
"Siege" is an entertaining and credible wrap-up of the situation that benefits from plenty of interesting intrigue, but there's also a great deal of lackluster action mired in here. The bloodless phaser fight on the promenade lacks punch, and scenes where Quark hauls his latinum through the air shafts are needless wastes of screen time. On the other hand, the fresh action sequences where Kira and Dax fly to Bajor in a run-down craft that's been sitting since the resistance days are both engaging and humorous—and incredibly well done.
Kolbe's direction is atmospheric and the production is impressive, although the story's ending is less than what it could've been. The danger recedes a little too quickly, the Circle's coup disintegrates a tad too neatly, and the roles of characters like Jaro and Winn in the plot feel somewhat unfinished. Also, the arbitrary death that gets Li Nalas "off the hook"—while effective as closure for his character—highlights how much potential has been lost by simply deleting the character. The overall effect of this finale is good, but not up to what came before.