S4, E19: 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. Dylan Baker returns as Colin Sweeney, Gary Cole returns as Kurt McVeigh and Morena Baccarin returns as Isobel Swift.