After doing three years hard time, Nancy is abruptly released from Federal Prison and transferred to a halfway house in New York City. Meanwhile, Andy, Silas, Shane and Doug, who have all spent the last three years in Copenhagen, are informed by Jill Price-Gray of Nancy’s release.
The family finally comes to visit Nancy at the halfway house, but they take her by surprise and she sneaks out the back window. Silas Botwin gets a modeling agency to sign him on. Meanwhile, Nancy meets Zoya’s brother Dimitri Ravitch, who sells her a pound of weed for the explosives she has, and they smoke weed together. When she tells Andy Botwin about this, Ed overhears.
Nancy Botwin tests positive for marijuana use and has to go to anti-drug classes. Shane gets into the City College of New York. When Silas Botwin discovers that Nancy is still dealing weed, he manipulates her so that he can join in.
Nancy Botwin outs the firm’s pot dealer after rejecting a move the CEO makes on her. A scandal in Afghanistan upsets the weed supply. Meanwhile, Andy Botwin starts a relationship with a woman who is married to a man dying of cancer, and is okay with her seeing other men.
Andy Botwin breaks up with Maxeen. Nancy Botwin and Silas Botwin head to California for the custody hearing over Stevie Ray Botwin but Jill Price-Gray has had her lawyer postpone the hearing. However, Nancy is able to speak to the judge in private. She later visits Heylia James who greets her with only violence.
Silas Botwin confronts Nancy about the identity of his true father. Heylia James and Nancy wind up in a violent shootout but they eventually speak peacefully and she agrees to supply Nancy. Silas agrees to live with Heylia. Shane begins taking criminal justice classes and impresses his professor.
Andy Botwin is annoyed that Nancy is using his bike shop as a front for her business. Silas Botwin has plans for an elaborate weed selling business with the help of Emma Karlin but Nancy wants something smaller so they can make money more quickly. Zoya Ravitch catches Nancy making out with Dimitri Ravitch. Nancy makes a deal with the SEC to be an informant on Clive in order to end her sentence early.
Zoya confronts Nancy about her affair with Dimitri Ravitch. She tells Zoya she is committed to her, but doesn’t actually have feelings for her, and continues sleeping with Dimitri. She agrees to wear a wire for the SEC while on a date with Clive, but things go awry when he doesn’t want to talk about work. Emma Karlin starts having romantic feelings for Silas. When Nancy gets home her wire records Zoya talking about the weed business, as well as Zoya saying she is the love of her life.
Nancy Botwin tells Clive that she was wired. He flees the townhouse. Nancy wants to get rid of Zoya and her possessive nature so she burns down Clive’s house, framing Zoya, given her history with arson. Zoya flees to Vermont. Shane offers to protect Nancy within the NYPD. Meanwhile, Silas Botwin figures out that Emma Karlin actually runs Pouncy House.
Shane winds up in jail but Nancy strikes a deal to get him out. Meanwhile, Emma Karlin and Silas agree to a merger.
Nancy rebrands her product as “Une Mere que j’aimerais baiser”, (French for MILF) and rejects merging with Pouncy House, knowing that they will be raided in the near future. Silas accuses Nancy of being too controlling and making him her employee. Denny and Emma are arrested during the raid on Pouncy House. Silas starts his own syndicate.
Nancy and Silas compete to find the best team for their businesses, and Silas gets back together with Emma, reuniting over their anger for Nancy. When Nancy realizes that Dimitri stole from Silas, she thinks the competition has gone too far, and she tries to reconcile with Silas. Silas is still unhappy, however, and leaks information about Nancy’s drug dealing to Jill Price-Gray. Meanwhile, Nancy believes she will definitely get custody of Stevie.
Nancy is blackmailed by Jill Price-Gray to give her custody of Stevie or go to jail again for dealing. Meanwhile, Heylia threatens Nancy at gunpoint for all of the weed back. Jill and Nancy go to Dimitri’s apartment to get the weed back.