Paranoia swarms as Sisko and Odo work to prevent a military power-grab at Starfleet Command, while the Defiant is believed to have been overtaken by Changelings.

The Dominion War sees a climatic ending while Dukat and Kai Winn release the Pah-wraiths from the fire caves of Bajor.

Against the will of the Prophets, Sisko marries Kassidy Yates while Worf and Ezri are held captive on a Breen vessel. Dukat continues using Kai Winn to unleash his sinister plan.

Baseball fever consumes DS9 as the crew prepare for an epic, albeit comical, baseball game against an all-Vulcan crew.

Sisko pursues a vision from the Prophets while Kira implements a blockade against the Romulans. Meanwhile, Jadzia’s closet friends ensure her passage into Sto-vo-kor.

As Sisko and Kassidy plan their wedding, Sisko receives a painful warning from the Prophets. Meanwhile, Ezri takes it upon herself to search for Worf.

DS9’s crew is concerned when Nog, who appears to be suffering from Posttraumatic stress disorder, seeks refuge in the Vic Fontaine holo-program.

Worf convinces a reluctant Martok to grant Kor a command-level position, only to discover that Kor’s best days are far behind him.

While on leave on Earth, Sisko uncovers a long-held secret after receiving visions of a mysterious woman. An "old" friend makes a stunning return and Kira clashes with a Romulan Senator.

Ezri Dax helps counsel Garak through his Closter phobia as she adjusts to her new life aboard DS9.

Keiko O’Brien becomes possessed by a Pah-wraith.

Upon crash-landing, Odo and Quark must work together to survive with limited resources.

Upon discovering an ancient Bajoran city, the Prophets send a dire warning to Sisko.

Jake experiences first-hand the horrors of war.

To cheer up a somber Sisko, Jake and Nog work hard to get a vintage baseball card for his birthday.

Dr. Bashir has been selected as the model for the new Emergency Medical Hologram, but an exposed secret jeopardizes his career.

To prevent additional Dominion reinforcements, DS9 mines the wormhole’s entrance, escalating tensions between the Federation and Dominion… leading to a climatic ending.

Quark, broke and desperate, joins his highly successful cousin Gaila in selling weapons, despite apprehension.

When the Maquis reportedly plan a massive attack, Sisko enlists the help of their captured former leader, ex-DS9 crewman Michael Eddington.

When Gowron is believed to be a Changeling, Sisko, Odo, Miles, and Worf go undercover to expose the truth.

Jake is under an alien influence while a pregnant, engaged Lwaxana Troi seeks Odo's help.

The mirror Jennifer Sisko lures Jake and Benjamin to the alternate universe to assist with building another U.S.S. Defiant.

Quark, Rom, and Nog accidentally transport themselves back to the Roswell Incident on Earth in 1947.

When a freak accident traps Sisko in a time paradox, only re-appearing every few years, Jake spends the remainder of his life trying to save him.

Unbeknownst to Kira, Dukat has a secret agenda when he offers to assist rescue survivors of The Ravinok.

Jake tags along when Sisko and Odo head to Earth to shore up defenses against a likely Changeling invasion.