A desperate battle to retain clients begins when Cary and Alicia's plan to leave the firm is exposed.

Alicia asks Cary to be her lawyer when Nelson Dubeck (Eric Bogosian) asks her to participate in a deposition; Will faces off with a new prosecutor while defending Jeffrey Grant (Hunter Parrish).

Alicia searches for answers as she tries to make sense of Will’s death in the aftermath of the courthouse shooting. Meanwhile, Diane delivers the somber news to the partners at Lockhart/Gardner who must decide how to move forward.

With her investigation complete, Special Prosecutor Wendy Scott-Carr presents her evidence against Will to the grand jury in hopes of sending him to prison for bribery. Meanwhile, Eli and Stacie Hall square off once again.

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.

Cary hires a prison consultant to prepare him for incarceration while the team at Florrick/Agos/Lockhart does everything in its power to help him. Meanwhile, Alicia practices for the State’s Attorney candidates’ debate.

When Alicia gets a vague tip from a courthouse clerk in the appeal case of a death row inmate, the law firm races to secure a stay of execution. Meanwhile, Peter Florrick prepares for his first debate with Glenn Childs and Wendy Scott-Carr.

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.

Despite their tense relationship, Alicia and Kalinda rush to prove their client's innocence in a murder trial, while the timing might finally be right for Alicia and Will to pursue their relationship.

Alicia and Cary represent a client who changed firms and Will and Diane delay turning over the case files; Marilyn tries to give advice to Alicia.

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 potential voter fraud is discovered in the State’s Attorney election, Eli and Alicia take steps to stop a recount by enlisting the help of a well-respected civil rights lawyer, Spencer Randolph. Also, Diane learns she unwittingly submitted false evidence in Cary’s case.

Lockhart-Gardner faces trouble when a recently divorced couple claims they influenced their separation for their own personal gain.

Will and Diane scramble when Louis Canning and Patti Nyholm team up to bankrupt the firm. Also, Alicia faces conflicted feelings regarding her relationship with Peter, and Kalinda's past catches up to her.

Alicia must focus on the firm’s efforts to prevent the execution of a convicted murderer while she secretly plans her exit from the firm with Cary. Meanwhile, Eli helps Peter assemble his staff in the governor’s office.

Alicia tries to obtain Lockhart/Gardner files as she prepares to exit the firm; faced with a sexual harassment lawsuit, the firm hires Elsbeth Tascioni.

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.

Alicia and Will defend a college student accused of killing her sorority sister while under the influence of a sleep aid. At the same time, they also deal with their growing sexual tension and Diane and Kurt McVeigh continue their flirtation.

Lockhart/Gardner defends a patient in a liver transplant case against rival attorney Patti Nyholm; however, the case takes a turn when Patti is fired from her law firm and asks Lockhart/Gardner to represent her. Meanwhile, Alicia deals with emotional fallout from Peter's one-night stand with Kalinda.

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 law firm of Lockhart, Gardner and Bond sues a social networking site on behalf of a Chinese dissident, who posted an anonymous blog about democracy in China, and was jailed and tortured by the Chinese government when the site failed to protect his anonymity and turned over his IP address. Meanwhile, Eli gets a tip that he hopes will drive Childs out of the race, and Will and Diane hope to wrestle the firm away from Derrick Bond once and for all.

A routine arbitration turns into a battle of wills between Alicia and Louis Canning, but the pair makes an unexpected connection when a personal crisis interrupts the proceedings.

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.