“Crossroads” is episode four of season four of Stargate SG-1.
A Jaffa arrives in the SGC with Bra’tac’s ID, although it is not him. She says that she was sent through by Bra’tac, but that he was unable to accompany her. The Jaffa is a priestess that Teal’c knows, and she wants to be taken to the Tok’ra, because she knows of a method of destroying the Goa’uld.
Apparently, she has managed to communicate with her symbiote, and if it gets a host, it will be willing to share all the Goa’uld’s secrets.
Sounds far too simple to be true. This is probably not going to end well.
Looks like they’ve raised the money for the CGI Goa’uld larva again.