Star Trek - Deep Space Nine: The Complete Series (DVD)

The stable wormhole discovered by the Deep Space Nine crew is known to the Bajoran people as the Celestial Temple of their Prophets. Sisko, as discoverer of the wormhole and its inhabitants, is therefore the Emissary of Bajoran prophesy. The wormhole’s other end is in the Gamma Quadrant, halfway around the galaxy from Bajor. That section of space is dominated by the malevolent Dominion. The Dominion is led by the Changelings, the race of shapeshifters to which Odo belongs.