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.

Bell and the team must keep a witness and her family safe from Los Santos before she testifies. Carisi asks Stabler to back off the case to preserve the integrity of his undercover work. Stabler hosts a chaotic family dinner.

When several bodies are found in a seaside town, Stabler navigates the politics and secrets of the community to find a potential serial killer. Jet brings a witness under her protection.

Stabler leans into his military network to search for the source of a Middle Eastern heroin pipeline making its way to the U.S. Reyes returns to the squad.