As the task force makes a critical arrest in the case against the Brotherhood, the Marcy organization ups the ante with a dangerous shipment of illegal weapons. Stabler looks for ways to gain Webb's favor while staying loyal to Donnelly.

When a 9-year-old girl is kidnapped in connection with the Brotherhood, Stabler and the task force must work together with Benson and the SVU to track down the culprits before it’s too late.

The crossover begins on Law & Order: Special Victims Unit S23E20 Did You Believe in Miracles? (I).

When the task force discovers a threat to Stabler’s life, the pressure is on to gather all the evidence to put Webb away for good. Donnelly gives the Brotherhood surprising news. Nova is forced to take a drastic step to keep her brother safe.

As Stabler confronts the truth about his father, he unknowingly affects his situation with the Brotherhood. The task force works to track down Webb, who's gone off the grid. Donnelly will stop at nothing to ensure he isn't caught.