The Jimenez cartel has an accord with Epifaño Vargas that allows them to use Dallas as a hub, so they can get down to the ports if there's trouble with their other outlets. This way, if the DEA is causing them trouble, they can get drugs to Europe, which keeps supply going out, and keeps money coming in1x05.
Camila makes a deal with Don Manuel to unite their two cartels and take down Epifaño. She promises to get Don Manuel's favorite lieutenant out of prison while he's being transported. She succeeds in doing this, and it is revealed that the lieutenant is Manuel's brother.
Boaz kills Manuel and takes over the business.
Boaz does not trust Camila, due to Cortez's interference, and the two conspire to get rid of her.