
A spinoff of "Star Trek: The Next Generation," "Deep Space Nine" is set on a space station near the planet Bajor. This time, Commander Benjamin Sisko is in charge of a diverse crew. But unlike other "Star Trek" series, there's no USS Enterprise to help them. Sisko and the crew must fight off rival alien species who want control of Deep Space Nine because of its strategic position close to a wormhole, which allows speedy travel to the far reaches of space.

While on a picnic, O'Brien's daughter stumbles into a vortex of swirling energy and is taken back 300 years.

The Defiant crew hastens to save a Starfleet captain who is stranded on a remote planet with little oxygen.

Despite the warning of the Prophets, Sisko leads an invasion of Cardassia, unaware that Gul Dukat has an ungodly plan.

With the wormhole closed, Sisko struggles for a way to contact the Bajoran prophets; Kira opens a Romulan military hospital; Dax's new host arrives in his hour of need.