The Cardassians who built it called it Terok Nor, but we know it by its Starfleet designation:

DEEP SPACE NINE

Situated at the mouth of the Bajoran wormhole, it guards the gateway to the Gamma Quadrant, home of the dreaded Dominion.

A mysterious alien species resides in the wormhole. The Bajorans refer to them as the Prophets, and worship them as gods - the wormhole is their Celestial Temple. The Prophets can see into the future as well as they can see into the past, for both are the same to them. They are extraordinarily powerful - and they're not the only ones of their kind.

An ancient Bajoran legend tells of another race of wormhole aliens - the Pah-wraiths - that were cast out of the Celestial Temple by the Prophets. Three Red Orbs are said to hold the key to their resurrection and restoration to power - but none had ever been found...

...until now.

An obscure cult has emerged, worshipping these fallen prophets - the True Prophets, they say. And their mysterious leader has discovered a Red Orb. The Cult of the Pah-wraiths believes that bringing together the three lost Red Orbs will free the Pah-wraiths from their eternal incarceration, triggering the Final Reckoning with the Prophets.

And so the race is on to find the Red Orbs. To the winner go the spoils of what may be the most awesome power ever unleashed...power to create a new, Golden Age - or to trigger Armageddon.

For seven years, we've witnessed the adventures of Captain Benjamin Sisko and his officers. We've shared in their triumphs - and their tragedies. But now, perhaps their greatest adventure awaits - one in which the very survival of the universe hangs in the balance.

The Millennium saga begins with:

Star Trek: Deep Space Nine - The Fallen