The war has begun. While Kira and Odo try to coexist with the Cardassian-Dominion presence on the station, Captain Sisko and his crew take a captured Jem'Hadar ship to destroy the enemy's supply of Ketracel-white.
While fleeing the enemy in a damaged Jem'Hadar ship, the crew crash lands on an uncharted planet -- with a squadron of stranded Jem'Hadar nearby. Kira in convicted by her complicity with the Dominion.
Worf's son Alexander joins the Klingon military and comes aboard General Martok's ship, for reasons unknown to his father. Dukat's daughter returns to Deep Space Nine.
Odo's growing curiosity about the Link puts a vital Resistance plan at risk when the female Founder comes on board the station. Captain Sisko must watch his crew go on without him after accepting a promotion.
With morale at an all-time low, Sisko conceives of a daring plan to retake the station by force. Quark and Kira hope to free Rom from prison, while the Cardassians prepare to reopen the line to the Gamma Quadrant.
The Federation Fleet engages the Dominion forces in an attempt to punch through to DS9 and stop the destruction of the minefield blocking the wormhole. Relationships are strained on the station as the Resistance makes a last-ditch effort.
Commanders Worf and Dax prepare to wed on board the newly recaptured Deep Space 9 -- but first Jadzia must satisfy the demands of Martok's wife, sent to evaluate her fitness to join their prestigious house.
Bariel shocks Major Kira when he arrives on Deep Space 9 from an alternate universe, and hopes to get a fresh start on life after an encounter with the Bajoran faith.
A group of genetically engineered men and women, once confined to a mental institution, are brought to the station in the hopes that Dr. Bashir can help them -- and wind up using their special abilities to offer Starfleet an advanced strategy plan.
After the ship transporting Gul Dukat to trial is destroyed, Captain Sisko is stranded with the insane war criminal -- who insists on getting Sisko to admit that he respects him.
Quark learns that he is Morn's sole heir after his best customer is reported dead, and becomes a target when Morn's acquaintances want a piece of his estate.
Ben Sisko imagines himself to be a science fiction writer in the twentieth century struggling with racism, where his coworkers are humanized versions of DS9's personnel.
Dax, O'Brien, and Bashir are shrunk in order to explore an anomaly, and take their tiny runabout inside the Defiant when they return to discover that the Jem'Hadar have taken control of the ship.
Chief O'Brien is recruited by Starfleet Intelligence to infiltrate the Orion Syndicate in order to root out a traitor, but his relationship with his new boss grows increasingly personal.
When Dukat tells Kira that her mother was his lover during the occupation, she travels back in time to find out if it's true -- and winds up a consort of the Cardassians herself.
Odo explores Dr. Bashir's new holodeck program, starring twentieth century lounge singer Vic Fontaine, in the hopes of learning how to win the heart of Major Kira.
Captain Sisko discovers an ancient Bajoran artifact that initiates a final showdown between the Prophets and their mortal enemies, the Pah-Wraiths, putting the station and all of Bajor in mortal jeopardy.
Jake and Nog are rescued from the Jem'Hadar by the crew of an advanced warship -- Academy cadets who took over their mission when the officers on board were killed.
Grand Nagus Zek is deposed after trying to reform Ferengi society with feminist values, inspired by Quark's rebellious mother -- forcing Quark to go to great lengths to help him.
Chief O'Brien's daughter falls into a portal that sends her far into the past. But when the crew brings her back she is an 18-year-old woman who has lived alone for 10 years, and behaves like a wild animal.
Captain Sisko is charged with planning the invasion of Cardassia when Starfleet decides to go on the offensive. Dukat returns home with a new agenda -- which will change Bajor and Deep Space Nine forever.