A famous, liberal lawyer hijacks Diane and Alicia's latest case; when Alicia's mother (Stockard Channing) visits for Thanksgiving, she seeks legal support.

When an erratic and litigious client is murdered, Alicia is convinced to waive attorney/client privilege to help the police when she learns that the killer may also be targeting someone close to her. Also, Peter and Mike Kresteva vie for an influential endorsement and Diane receives a stunning offer.

As a favor to her mother, Alicia represents software coders in a contract dispute; Peter asks Alicia to renew their wedding vows.

Alicia and Cary sue the NSA on behalf of search engine Chumhum, unaware that Lockhart/Gardner’s connection to a former client has resulted in the spy agency monitoring the firm’s communications. Meanwhile, Alicia’s mom takes steps to support her daughter, and Eli works to secure Diane’s Supreme Court nomination.

Alicia is shocked to learn that a former client bequeathed her millions, but Lockhart/Gardner quickly contests the will on behalf of the deceased’s wife. Meanwhile, Diane asks Kalinda to look into Damian’s background. Also, Eli and Marilyn are concerned about Peter being seen with Alicia’s more disreputable clients at the Florrick/Agos holiday party.

When Alicia has a chance encounter with a charming entrepreneur during jury duty, she begins to consider options outside her marriage and seeks the advice of her mother. Meanwhile, Diane's friends come to her for legal advice when their son is accused of selling drugs on the Internet.

The futures of Florrick/Agos and Lockhart/Gardner are at stake when the firms consider merging, driving a wedge between Alicia and Cary. Meanwhile, Diane makes a big decision when Louis Canning challenges her role at her firm.

Eli asks a respected campaign manager to help Alicia explore the option of running for state's attorney.

Alicia and Lucca work together on a complicated case involving a designer drug dealer. Meanwhile, Eli persuades Alicia and Veronica (Stockard Channing) to participate in a mother-daughter cooking show to help Peter's campaign, but things don't go as planned.

As the grand jury against Peter Florrick is assembled, with U.S. Attorney Connor Fox (Matthew Morrison) leading the proceedings, Alicia, Eli and Peter's lawyer, Mike Tascioni (Will Patton), attempt to discover what charges are being leveled against him. Also, Alicia and Jason attempt to spend a quiet weekend together but are interrupted by her meddling family.

Alicia’s night goes from bad to worse when she throws a party to celebrate Howard and Jackie’s upcoming wedding. Also, Eli asks Jason to investigate Peter in preparation for his trial.