Bell’s task force investigates the connection between Congressman Kilbride and the Marcy organization. Stabler makes new friends with a group of close-knit cops. Nova receives a promotion just as her two worlds begin to collide.

A new ADA on the case urges the task force to flip a member of the brotherhood to get the evidence they need. Stabler must come to terms with the legacy his father left him. Bell and Nova's worlds start to overlap in more ways than one.

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).

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.