Alicia makes her decision about whether to stay with Peter or pursue a relationship with Will.

An Army reservist is accused of murdering his wife; Childs turns to dirty tricks in hopes of marring Peter's campaign.

A multi-million dollar malicious prosecution suit leads to an explosive confrontation between Alicia and Glenn Childs. Meanwhile, Alicia's brother, Owen, visits after his questionable remarks about Peter goes viral online and makes Eli apoplectic.

Alicia risks disbarment when Childs' office suspects her of an ethics violation, which could also ruin Peter's political campaign. Meanwhile, a third candidate is revealed in the campaign for state's attorney.

Alicia and the partners must decide whether to take on the case of a VIP massage therapist who accuses a Nobel Peace Prize winner of sexual assault. Meanwhile, Peter and Eli try to figure out what Wendy's candidacy means for their campaign.

Alicia, Will and Diane are caught off-guard when a brilliant disabled attorney (Michael J. Fox) uses his condition to sway a jury; Kalinda turns to a former friend for help.

Alicia is on the road to successfully arguing that her teenaged pop star client, Sloan, is innocent of a DUI, until Cary drops a bombshell that could ruin the starlet's career and life. Meanwhile, Peter's campaign hits a snag when the Democratic Committee tells him to drop out of the race.

When the government accuses an alderman of taking a campaign bribe from a Muslim extremist group, the team reviews hours of wiretap evidence to mount his defense, and Alicia is startled to discover that some of the tapes pertain to her.

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.

Alicia's law firm tries to turn a client's son against his girlfriend when both are accused of murder; Alicia faces a tough decision.

When Alicia's client confesses under duress to murdering a fellow prison inmate, Cary's team seeks to challenge by uncovering an unlikely connection between the two inmates. Meanwhile, Wendy Scott-Carr threatens to expose a Florrick family issue in hopes of forcing Peter to drop out of the race.

While Alicia races against Louis Canning to round up the most clients for an Erin Brockovich-style class action lawsuit, a mole is detected in LGB law firm, who seems to be working for Canning.

Will and Diane take on a defamation case from a young Internet billionaire, who is suing the film studio for depicting him in a negative light. Meanwhile, Alicia confronts Will about the message he left on her voice mail.

Diane represents ballistics expert Kurt McVeigh in a lawsuit; Eli takes an interest in Wendy Scott-Carr's illegal nanny.

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.

Lockhart Gardner law firm represents client and drug kingpin Lemond Bishop in divorce proceedings, even though Bishop wants reconciliation. Meanwhile, Kalinda is subpoenaed for a grand jury investigation.

On behalf of the victim's daughter, the law firm sues a convicted murderer who is profiting from a song he wrote describing his crime. Meanwhile, Eli anonymously uses the firm to help Natalie Flores and her family with their legal troubles.

To Lockhart/Gardner's disbelief, Louis Canning returns to face off against Alicia once again when the firm represents families of workers who committed suicide due to miserable working conditions. Meanwhile, Cary finds out shocking information about Kalinda.

Lockhart/Gardner represents a small drilling contractor in a dispute against a major oil conglomerate which is going well until a South American dictator takes over the case. Meanwhile, the election results are in.

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.

Lockhart/Gardner defends Stephanie Engler, the owner of an adultery Web site, after one of her users is murdered; however, the civil case turns criminal when the murder is pinned on Stephanie. Alicia goes ballistic on Kalinda about her one-night stand with Peter, causing Kalinda to contemplate leaving the firm.

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.