Robert Manning Jr.

Ducky insists that the suicide of a female petty officer, institutionalized for a nervous breakdown, was actually murder.

Gideon, Hotchner and their team reopen the unsolved case of a serial killer who has attacked someone for the first time in 20 years.

When Benson becomes the target of a ruthless gang leader, Capt. Duarte takes the case; Fin works with the Bronx SVU to help clear its case backlog; Lt. Dixon offers to translate when a deaf student is raped.

While Benson tries to help the gang member who attacked her, Duarte reveals a shocking piece of evidence in the case; Fin is tasked with hiring new detectives for the Bronx SVU.

As Reese and Shaw race to catch up with Finch, he infiltrates a maximum security government facility in a desperate mission which could mean the end for not only Samaritan, but for himself and The Machine as well.

In the Season Four finale, Finch and Root race to save The Machine, which has been located by its AI rival, Samaritan. Also, Reese is caught in the middle of the final showdown between rival crime bosses Elias and Dominic.