Will, Diane and Alicia help Elsbeth Tascioni when she is arrested; Eli and Jordan give Peter conflicting pieces of advice.

Alicia and Will go to trial unprepared when they learn that an impending Supreme Court ruling could result in Colin Sweeney being jailed for life. Also, Diane reunites with Kurt McVeigh but is forced to reevaluate the relationship.

Zach makes a discovery that leads Alicia and Cary to believe that the Lockhart/Gardner firm is spying on them; Will helps one of Alicia's former clients; Clarke Hayden (Nathan Lane) offers financial advice to Florrick/Agos.

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.