Peter gets acclimated to life at home and works on a comeback strategy with his political team. Meanwhile, Alicia and Diane wrestle with spousal privilege laws in a murder case that hinges on their ability to get a wife to testify against her husband.
Baez's estranged brother is the lead suspect in a homicide. Also, a German Shepherd in the K9 unit is being accused of police brutality, and Henry investigates a widow who may be responsible for her husband's death.
The only witness to the beating of a woman (Judy Kuhn) is her daughter (Paulina Gerzon) who has Williams syndrome.
A crane collapse kills a man, and it may not have been an accident; a rift forms between Jack McCoy and Michael Cutter.
Ghosts from Nichols' past return as he investigates the murder of an eccentric book dealer.