The SG-1 team stumbles upon the aftermath of a firefight between rival System Lords and the self proclaimed greatest bounty hunter in the universe, Aris Boch. Wounded and in need of assistance the sarcastic mercenary returns to the SGC with the team and offers them an intriguing trade proposition. If they will ambush the envoy of Cronus and obtain the drug he needs to stay alive, he will give them a DNA sample of his Goa'uld resistant blood. With the prospect of eliminating human Goa'uld host possession forever, the team undertakes the risky mission. Will Boch keep his end of the bargain or is he plotting to cash in on the hefty bounty for SG-1's lives?

From Avatar Press

SG-1 finds the bounty hunter Aris Boch wounded on an unnamed planet. He has started working for Cronus, now that Sokar is rather upset with him. Now, he needs roshnah to live, and he wants SG-1 to get it for him when a delivery of the product is made through the Stargate. In return for that (and taking care of him from his wounds), he will provide them with a sample of his DNA, so they can figure out whatever is in his body that causes him to be safe from Goa'uld implantation.

SG-1 takes him to the S.G.C., despite Jack's reservations, and they even carry out the mission for Boch, stealing a sealed container from several Jaffa. Unfortunately, Boch uses a prick to Jack's hand to surreptitiously make it Jack's blood that Dr. Fraiser takes, rather than his own. By the time a video-taped message from Boch reveals this to SG-1, he is long gone through the Stargate, along with the booty from SG-1's mission. The package is actually money, not roshnah, which should allow him to stay clear of both Sokar and Cronus for quite a while.

SG-1 has been had.