4. Sezon

Nancy has relocated to the border in search of a new life but she soon finds her past to be inescapable. Both problems and people follow her on her journey, but some have finally been left behind.

After settling her family in Ren Mar, Nancy turns her attention back to business. Later, Guillermo gives her a much-needed crash course in "running" across the border. Meanwhile, Celia gets further acquainted with life in prison. Lenny leaves Silas and Shane to care for Bubbie while he goes to the track. When Lenny returns, Andy confronts him about some family history.

Nancy makes her first successful smuggling run across the border with both drugs and human cargo. Meanwhile, Captain Till strikes a deal with Celia to get her out of jail. In return, she must gather evidence to incriminate Nancy and Guillermo. Back in Ren Mar, Andy tries to convince the family, including his father, to put Bubbie out of her misery.

After Bubbie's death, the entire Botwin family sits shiva (the Jewish period of mourning) for seven days. After shiva, Nancy is sent on a mission and takes Andy along with her. Now that shiva is over and Bubbie is gone, Lenny decides to sell the house. Meanwhile, Celia continues her flirtation with Captain Till, and Doug finds refuge with the Botwins.

Guillermo gives Nancy a new job and she soon finds working retail isn't as mundane as it appears on the surface. Celia's deal with Captain Till brings her dangerously close to the action. Meanwhile, having been left in the desert by Nancy, Andy finds himself with a pack of immigrants and a very unfriendly Coyote. Back at home, the boys battle an infestation of bees.

Nancy, annelik mağazasının arkasındaki tüneli takip eder ve diğer ucunda görmemesi gereken bir şey görür. Dean yeni bir işe girer ve Isabelle'i Celia ile yaşamaya bırakır. Bu sırada Silas, Lisa ile flört eder ve Doug, sahile vuran bir güzellik vizyonuna aşık olur.

Nancy, Guillermo tarafından gelecek olan paradan payının reddedilmesi üzerine onu aşıp doğrudan Esteban'a gitmeye karar verir. Celia, Meksika eczanelerindeki ucuz ilaçları keşfeder. Silas ve Lisa yakınlaşırken Shane bazı şok edici fotoğraflar bulur. Andy ve Doug insan kaçakçılığı operasyonları için mülakatlara başlar.

Nancy ve Esteban için spontane bir buluşma neredeyse şiddetle sonuçlanır; Silas, Lisa'ya ot yetiştirdiğini itiraf eder ve Lisa ona cazip bir teklif yapar; Andy ve Doug ilk müşterilerini sınırın ötesine kaçırırlar; Celia bir bağımlılık geliştirir.

Yoğun programlarına rağmen Nancy ve Esteban birbirlerine zaman ayırmaya çalışır. Shane'in fantezilerini ve Silas'ın yeni ve çok daha yaşlı kız arkadaşını öğrenen Nancy, iki oğluyla da konuşmak zorunda kalır. İlişkileri devam ederken Lisa ve Silas, peynir dükkanına bazı özel ürünler ekler.

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.

DEA, Nancy'yi sorguya çeker ve ardından Esteban'a bazı şeyleri açıklamak zorunda kalır. Celia, arası bozuk kızı Quinn'le barışmak için Meksika'nın derinliklerine doğru yolculuk eder. Bu sırada Silas, Lisa'nın eski kocasıyla buluşur ve Doug yaşamak için bir sebep bulur. Nancy, Esteban'a şok edici bir gerçeği açıklar.