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.

Florrick/Agos and Lockhart/Gardner fight to keep Lemond Bishop as a client when he is arrested on a drug-related charge, which possibly resulted from a leak inside Alicia's firm. Meanwhile, the investigation into voter fraud in the gubernatorial election continues to move forward when Marilyn is approached by an agent in the Office of Public Integrity.

Florrick/Agos takes on the case of an NSA whistleblower, only to learn that the agency has been monitoring the firm as well as Alicia’s personal life. Meanwhile, Diane faces the difficult task of working alongside Louis Canning when he joins Lockhart/Gardner. Also, Alicia goes after the State’s Attorney when he attempts to make Finn a scapegoat in the Jeffrey Grant case.

Alicia and Lucca defend a former technology firm employee who was fired after failing a polygraph test. Eli wants to leak information that would damage Peter's campaign---but could also impact Alicia.

Alicia joins a secret panel of attorneys advising the federal government on a controversial case. Also, Eli hires Elsbeth Tascioni (Carrie Preston) to uncover why the FBI is targeting Peter.

Alicia and Lucca travel to Toronto to represent NSA agent Jeff Delinger (Zach Woods) who was detained by customs officers while attempting to re-enter the United States. Also, Diane grows concerned when her husband, Kurt McVeigh (Gary Cole), decides to retire and sell his business to Holly Westfall (Megan Hilty), a rival business owner. Peter contemplates an uncertain future when faced with a possible arrest.