Season 4 finale. Nancy is questioned by the DEA and confesses to Esteban.
Season 4. A fed-up Nancy squeals to the DEA about the drug tunnel.
Season 4. Celia has irreconcilable differences with her rehab partner.
Season 4. Nancy learns that the tunnel has uses other than drug smuggling.
Season 4. Each of the Botwins struggles with romantic complications.
Season 4. A spontaneous date ends in near-violence for Nancy and Esteban.
Season 4. Doug and Andy review candidates for a human smuggling operation.
Season 4. In a secret tunnel, Nancy witnesses something she shouldn't have.
Season 4. Nancy discovers that retail work isn't as boring as she expected.
Season 4. Nancy takes Andy on a mission after a week sitting shiva.
Season 4. Nancy makes her first border crossing; Celia strikes a deal.
Season 4. Nancy learns how to run drugs across the Mexican-U.S. border.
Season 4 premiere. Nancy and her family relocate to a border town.