Stardate 46922.3: A Valerian transport will soon be docking at Deep Space Nine, much to the chagrin of Major Kira, who knows that the Valerians had once been a supplier of chemical weapons to the Cardassians during the Occupation of Bajor. Before the ship enters the sector, however, the Klingon vessel Toh'Kaht, on a bio-survey of the Gamma Quadrant, returns early through the wormhole and promptly explodes before the DS9 crew's eyes. One of the Klingons had been able to beam aboard the station while the Toh'Kaht exploded. Just before he succumbed to phaser blast injuries, he speaks the word, "Victory".
s01e01 - Emissary, Part I
s01e02 - Emissary, Part II
s01e03 - Past Prologue
s01e04 - A Man Alone
s01e05 - Babel
s01e06 - Captive Pursuit
s01e07 - Q-Less
s01e08 - Dax
s01e09 - The Passenger
s01e10 - Move Along Home
s01e11 - The Nagus
s01e12 - Vortex
s01e13 - Battle Lines
s01e14 - The Storyteller
s01e15 - Progress
s01e16 - If Wishes Were Horses
s01e17 - The Forsaken
s01e18 - Dramatis Personae
s01e19 - Duet
s01e20 - In the Hands of the Prophets
When the Cardassian occupation of Bajor ended in 2369, the mining space station Terok Nor was left abandoned, its systems ripped out. By invitation of the Bajoran provisional government, Starfleet stepped in to oversee the rebuilding and day-to-day operations of the newly christened Deep Space Nine.
The years of Starfleet's nonintervention into Cardassian matters, however, had taken its toll on relations with the Bajorans. Consequently, Starfleet's position was a tenuous one; many Bajorans, suspicious and hostile as a result of decades of Cardassian oppression and brutality, did not greet the Federation's presence with open arms. The Federation's assistance is put to the test as DS9 becomes a center of travel and commerce that stretches into the Gamma Quadrant.