Alicia and Diane consider merging their firms in the wake of Will's death, even as they find themselves on opposite sides of a contentious divorce suit. Meanwhile, Alicia offers assistance to Finn when it becomes clear that the State's Attorney is looking for a scapegoat in the Jeffrey Grant case.

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.

When Alicia pays a visit to longtime client Colin Sweeney, she finds herself in the unwanted role of witness when a body is discovered in his home. Meanwhile, Eli steps in when an unfortunate picture of Zach threatens to become a public relations nightmare for Peter.

Alicia manages the fallout when her client's insensitive statements to the press threaten the fate of a multi-billion dollar merger. Meanwhile, Diane faces a potential conflict of interest when she and Louis Canning are on opposite sides of a class action suit involving a pharmaceutical company. Also, Eli learns the truth about Alicia and Peter's relationship.

Despite pressure from Eli, Alicia is determined not to run for State's Attorney; Diane considers joining Florrick/Agos; a crisis threatens to tear the firm apart.

As the firm deals with an internal legal crisis, Alicia tries to hold onto their biggest client; Diane plots her move.

Joy Grubick, a pretrial service officer, interviews Cary's colleagues to determine if he should remain behind bars; a client's case ends up in Christian arbitration.

While preparing his case against Cary, Finn discovers a potentially devastating piece of evidence which could have ramifications for Alicia and Peter. Meanwhile, Eli becomes wary when a new prospective candidate emerges in the race for State’s Attorney.

When Cary's case goes to trial, a plea deal offer has him seriously considering jail time. Also, a joke between mother and daughter lands Alicia in trouble as her campaign for State's Attorney is in full stride.

The partners of Florrick/Agos/Lockhart find themselves at odds when they voice different opinions regarding the company’s future. Also, the firm falls victim to a cyber-hack after it takes on the case of a movie producer whose work is pirated on a peer-to-peer sharing site.