Det. Olivia Benson is asked to help investigate a case involving her half-brother, Simon, and is faced with the choice of protecting her career or her family.
Fin investigates a case involving a sexually assaulted Army Ranger, but he finds it hard to uncover the truth as the victim refuses to offer any information.
Callen, Sam and a Navy captain investigate spies that are believed to have infiltrated the USS Allegiance; Hetty and a Marine try to stop a missile attack.
The NCIS team splits up to cover cases across the planet, which puts Callen and Sam in Israel and Kensi with a Department of Justice agent in Los Angeles.
A congressman calls on the Special Victims Unit for help when he is accused of soliciting underage girls; Benson and Rollins become targets of a risqué website.
While Fin and Phoebe prepare for their wedding, Benson and Rollins attempt to help a homeless single mother who is trafficked in exchange for safe housing.
A single mother decides to give her son a "Buddi" doll as a gift, but as the doll's more sinister nature gets revealed, the family finds themselves in danger.
A congressman calls on the Special Victims Unit for help when he is accused of soliciting underage girls; Benson and Rollins become targets of a risqué website.