There were a total of 173 (original broadcast & DVD) or 176 (syndicated) episodes over the show's seven seasons, which are listed here in chronological order by original airdate, which match the episode order in each season's DVD set.

The second season of Star Trek: Deep Space Nine debuted on 26 September 1993, with twenty six episodes that ran through 12 June 1994. In their second year together, the crew of Deep Space 9 face problems that will affect the galaxy forever.

To save the Federation in a critical scheme, Sisko comes to realize that he must violate its fundamental principles to do so. Sisko tells two men from Temporal Investigations how he and his crew went back in time to when Captain James Kirk of the first Starship Enterprise exposed a Klingon spy with the help of Tribbles.

In the vicinity of the liberated planet of Bajor, the Federation space station Deep Space Nine guards the opening of a stable wormhole to the far side of the galaxy. To save the Federation in a critical scheme, Sisko comes to realize that he must violate its fundamental principles to do so.

2003年4月1日 · A spin-off of Star Trek: The Next Generation, "ST: DS9 ~The Complete Second Season" opens as the Federation settles into the Cardassian space station Terok Nor in deep space after being invited in by the planet of Bajor.

Star Trek: Deep Space Nine (DS9) is an American science-fiction television series created by Rick Berman and Michael Piller. The fourth series in the Star Trek media franchise, it originally aired in syndication from January 3, 1993, to June 2, …

Commander Benjamin Sisko (Avery Brooks) heads the crew of Deep Space Nine -- including Odo (Rene Auberjonois), Worf (Michael Dom), Dax (Terry Farrell) and others -- as it travels through space, trying to keep both the space station and the areas it travels safe, secure and free