Barnaby and Leah fly to Mexico to give the cartel what they were promised once and for all. But Nina's been kidnapped and is suddenly along for the ride, which causes major tension between Angel and his father. Nina is thrown when she runs into a familiar face, while Leah and Barnaby are in danger of falling apart just when they need to be together most. Can Barnaby pull off the deal? Will Nina escape Angel? And could Leah be up to something no one knows about?