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

As Cary's case goes to trial, he considers a plea deal involving jail time. A joke gets Alicia in trouble as her campaign progresses.

Alicia pays a visit to long-time client Colin Sweeney, but she finds herself in the unwanted role of witness when a body is discovered in his home.

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

Alicia manages the fallout when her client's insensitive statements to the press threaten the fate of a multi-billion-dollar merger.

Finn discovers new evidence against Cary that could impact Peter and Alicia. Eli is wary of a new prospective candidate for state's attorney.

Elizabeth tries to stop Israel from taking military action against the Iranians after Iran is suspected of nuclear activities; Russell wants congressman Jeff Pearson to support President Dalton in the House's election vote.

Reese and Finch must protect a judge who wants nothing to do with their extralegal activities, even though his refusal could cost him his life.

The partners of Florrick/Agos/Lockhart have different opinions about the future of the firm. A movie producer whose work was pirated needs legal help.

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

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.

Alicia and Diane consider merging their two companies in the wake of Will's death, even as they find themselves on opposite sides of a contentious divorce suit. Elsewhere, Alicia offers assistance to Finn Polmar.

The team investigate a strange cylinder, found in a deadly explosion at a construction site in NYC. The cylinder was in the middle of the explosion and was completely unharmed.

A Massive Dynamic employee leaps to his death after hallucinating a butterfly attack. Agent Scott proves useful in investigating the case, but a frustrated Olivia wants to remove him from her consciousness once and for all.

When a religion professor is murdered, Holmes and Watson hunt for a killer with connections to the occult.

When a train station is bombed, it's a race against time to investigate for Peter, Walter and Olivia; Walter soon discovers something mysterious about the human remains.

When Olivia and company investigate a strange abduction, the search leads them to enigmatic eavesdropper, the Observer.

While explaining Peter's otherworldly origins to Olivia, Walter flashes back to 1985, and more secrets are revealed.

The team investigate a case of spontaneous human combustion; Peter's secret project is revealed; Olivia starts seeing visions of the alternate universe.

The team battles the Observers.