The Cardassians checked out Bridgetown a bit when they ruled Bajor but didn't view it as worth the trouble. Space around Bridgetown is barely explored, with rumor of new species being one of the coins of the realm. It's been labelled the Kellinan Reach, after an empire supposedly located somewhere in the vicinity, though if anyone's made official contact with them, it is unknown. Starfleet always meant to explore the area, but exploration of the Gamma Quadrant through the Bajoran Wormhole occupied them for a few years and then the Maquis situation, war with the Klingons, followed by the Dominion War, put all this exploration on the back-burner...
Enter the
H.G. Wells. Just prior to her destruction, her crew discovered an Iconian map room. It was very coarse, and there wasn't time for fine study of it. But it clearly marked an Iconian artifact, perhaps even a Gateway, somewhere in the Kellinan Reach. Maybe even in Bridgetown, though the tech of the builders does not seem to be Iconian...
The
Wells crew comes back with their report. Starfleet is very intrigued. It wants to investigate further - Iconians had technology thousands of years more advanced than that of the Federation. And with the past decade spent battling the Borg and Dominion, the Federation could use all the help it can get... But it can't spare much in the way of resources for the small chance there is something valuable in the Reach - the fleet is in shambles, worlds like Betazed have been ravaged by the Dominion. All they can spare is a few runabouts and a small Starfleet team. To lead this team they send a poltically unpopular, but heroic commander, Jasmine Kharn, who years ago was recruited by Section 31 but has gotten less and less cooperative in her relationship with Section 31. Section 31 didn't quite have the influence to bounce her out of Starfleet, given her heroism during the Dominion War as commanding officer of the
USS Avenger (later to be renamed the
H.G. Wells). But using their influence to send her to a far-off outpost, with limited resources, that has a certain appeal. Indeed, the odds are quite stacked against her - unlike Commander Sisko, Commander Kharn isn't even in command of Bridgetown - no-one is. She's just in command of the small Starfleet contingent and a couple of runabouts...
But more than just the Starfleet crew from the
Wells know about the Iconians. The Klingons who were aboard do, as do the Romulans and a band of smugglers. The Klingons are allies of the Federation, so they haven't raised too much of a stink. The Federation has promised to keep them appaised of future developments on this front and the Klingons plan on sending its own team to investigate this at some point, but they are a tad busy trying to preserve their empire in the aftermath of the Dominion War. The Romulans are supposedly allies too... Just like the USSR and USA were allies in World War II... They have sent their own observer, a Tal Shiar agent quite familiar with the Iconians and has worked with Starfleet before - Sublieutenant Ayrton.
But the band of smugglers knows about the Iconians as well. And their leader Daimon Incini is always the opportunist. He took his settlement latinum from the Federation (he sued Starfleet over the loss of his ship, which brought him and his crew to the
Wells) and instead of buying a new ship, he opened a bar on Bridgetown. He arrived weeks before Commander Kharn. He established himself quite well. And he referred customers to his good friend Krel Ardana who proved quite talented in helping to maintain the nightmare of technologies present on the outpost - for a price of course! She saved a the outpost from a catastrophic life support failure shortly after arriving (of course some believe she and Incini sabotaged the life support system in the first place, but Incini would refer them to his director of communications, Throk...)
So when a poor, lily-white Starfleet crew arrived to try to set up their own installation on the outpost, they were less than welcomed. Except for a simple bar owner who offered to smooth things over for them. For a price. He wanted a piece of the action. He and Krel Ardana promised secrecy of course...