Despite their busy schedules, Nancy and Esteban try to find some time for each other. After finding out about Shane's fantasies and Silas's new and much older girlfriend, Nancy also has to talk to both of her sons. With their relationship going on, Lisa and Silas add some special offerings to her cheese shop.

Nancy learns that the tunnel is being used for more than drugs. Esteban puts her fears to rest as well as her nagging headache with a strong remedy. Celia's family stages an intervention in order to force her into rehab. Andy finds Maria and takes her across the border to an awaiting Doug. Silas babysits while Shane explores new territory with his two girlfriends.

Nancy must deal with the aftermath of Shane's exploits, her Ayahuasca trip, and more confrontation with Guillermo. Celia's struggles with her rehab partner, Barry, force her to find a new rehab facility. Doug and Maria's relationship quickly goes south and they both turn to Andy for help. Meanwhile, Silas's "sandwich" business has grown too big, forcing him to turn to Nancy for help.

A fed up Nancy squeals to the DEA to bust the tunnel while she plays it cool with Esteban. Embracing rehab, Celia sets out to make amends with her family. Andy succumbs to Maria's advances, and later comes clean to Doug. Shane impresses his girlfriends with his drug scoring abilities.

The DEA brings Nancy in for questioning and then she must explain things to Esteban. Celia travels deep into Mexico to make amends with estranged daughter Quinn. Meanwhile, Silas meets Lisa's ex-husband and Doug finds a reason to live. Nancy makes a shocking revelation to Esteban.

After showing Esteban the proof of her baby, a sonogram picture. Nancy returns to Ren Mar to her family, but still unsure of her fate. Meanwhile, Celia is held hostage in Mexico by her estranged daughter Quinn who tries to ransom her off to all her friends, but they hilariously decline to deliver the cash for her release. Back in Ren Mar, Andy, Silas and Doug discuss plans to grow pot in a national forest.

Nancy and Andy grow closer together while they try to be good parents. In the meantime, Celia and Dean work together to exploit their product surplus.