The third Star Trek series is led by Benjamin Sisko, commander of the space station Deep Space Nine, who discovers the first known stable wormhole, a virtual shortcut through space that leads from the Alpha Quadrant to the Gamma Quadrant on the other side of the galaxy. The Gamma Quadrant is governed by the Dominion, a group led by the Changelings - an group of shapeshifters which counts DS9 crew member Odo (Rene Auberjonois) among its numbers. The Dominion has become a violent force in the galaxy, and Deep Space Nine and its crew has become the only home in upholding the way of life established by the Federation.

Episodes Comprise:

1. The Homecoming
2. The Circle
3. The Siege
4. Invasive Procedures
5. Cardassians
6. Melora
7. Rules Of Acquisition
8. Necessary Evil
9. Second Sight
10. Sanctuary
11. Rivals
12. The Alternate
13. Armageddon Game
14. Whispers
15. Paradise
16. Shadowplay
17. Playing God
18. Profit And Loss
19. Blood Oath
20. The Maquis - Part 1
21. The Maquis - Part 2
22. The Wire
23. Crossover
24. The Collaborator
25. Tribunal
26. The Jem'Hadar