Ibudan, a criminal/murderer Odo has dealt with before, returns to DS9 only to be murdered shortly after. . .leaving Odo to be the prime suspect. Meanwhile, Jake and Nog’s trouble making prompt Keiko to do something helpful for the station’s children.
A jealous Trill, who had waited his entire life to receive a symbiont but never had, decides to steal one. . .Dax’s!
Kira finds herself on Cardassia as a Cardassian. She is told she is called Iliana Ghemor and was a Cardassian spy.
After the Breen attack Earth there are mixed emotions abound on DS9. Having revealed her secret regarding the Prophets to the disguised Dukat, Kai Winn turns her back on them, only to be convinced by Dukat to embrace the Pah Wraiths. On the home world of Cardassia, Legate Damar mounts a resistance to the Dominion.
Vedek Winn, a candidate in the race for the open Kai position, stirs up trouble on DS9 when she attempts to boycott Keiko’s school for not teaching Bajoran religious beliefs.
Driven to desperation by the Dominion, the Maquis launch a massive bio-weapons strike towards Cardassia. Sisko must trust the traitor Eddington to try to stop them.
Sisko leads, what he hopes will be, a final all-out assault on Cardassia Prime. Kira and Garak mount a suicidal assault on the Cardassian headquarters occupied by the Dominion, who in turn kill innocent women and children village by village in retaliation for the Resistance’s attacks.
Suddenly desiring to wed within the week on DS9, Worf and Jadzia go through their own Klingon rituals: Worf on a four day bachelor party with the male members of the crew & Jadzia deals with her prospective mother-in-law, who totally opposes the idea of “an alien” marrying into her Klingon household.
After chasing a fugitive into a cave, Kira gets stuck and is slowly encapsulated by a growing crystal stone while Odo tries to figure out how to free her.
While noted scientist Gideon Seyetik is preparing for an ambitious project, re-igniting a star, Sisko is intrigued by a woman who keeps disappearing.
Vedek Bareil is targeted by fellow Kai candidate Vedek Winn as having been a collaborator with the Cardassians during the Occupation.
After searching out and finding Odo, another changeling asks him to leave DS9 with him, even though the rest of the crew aren’t convinced the new changeling is not part of the Founders.
When Odo and Quark crash land, they must put aside their differences to climb a mountain to signal for help. Jake and Nog try to be roommates, but their different styles clash.
Word that a previously thought dead Bajoran resistance legend is still alive sends Kira and Chief O’Brien to Cardassia IV to rescue him; meanwhile “The Circle”, a sect of the Bajoran provisional government that is intent on wiping out alien influence, is sneaking into power.
A man claiming to be the emissary comes through the wormhole. Sisko is happy to give up his position. Meanwhile Keiko returns and O’Brien stops spending time with Bashir.
A new crew is assigned to a former Cardassian space station: Deep Space Nine. It is a joint Federation/Bajoran force, with Commander Sisko in charge, but his life is dramatically changed when he is declared the Emissary to the Prophets by a Bajoran priest.
The Chief’s daughter gets caught in a time displacement and when they get her back, she is considerably older.
Sisko, Dax, Odo and Garak find themselves in the past when the Cardassians controlled the station, and a crime that Odo investigated may be the key.
News arrives that Kai Winn has also become Bajor’s political leader. She asks Kira to negotiate with an old resistance friend about returning soil reclamators.
Tahna Los, a former Bajoran terrorist during the Occupation, asks Sisko for asylum on DS9. Meanwhile, the station’s last Cardassian inhabitant, Garak, possibly a former spy for the Cardassian government, proves an interesting mystery to Dr. Bashir.
