Stabler must deal with rapid changes at work and home after returning from a dangerous undercover assignment. Bell hires an advisor whose AI technology program could revolutionize police investigation. Jet and Reyes struggle with Whelan's absence.

 

Stabler and Officer Bashir track down a missing father and son who could lead to the answers they need. After an undercover operation goes sideways, Bell relegates Reyes to desk duty. Stabler reunites with his younger brother.