Law & Order: Organized Crime Season 2 Episode 18 revolves around the next step in Stabler's investigation of the Brotherhood.

Now that Santos has been arrested, the other members of the Brotherhood are nervous and one suggests these problems didn't occur until Stabler showed up. Stabler offers to fight the guy. Donnelly instead makes Stabler his #2 man.

Webb discovers a shipment of guns has disappeared and hires Stabler and Donnelly to track it down. They beat up a dirty cop who was involved, who points them toward a guy who works at JFK. Donnelly bails without explanation, leaving Stabler to confront the thief on his own.

Bell wants to abort the mission but Stabler refuses. The contact is paranoid and only wants to deal with Donnelly. Stabler fights him and the rest of the cops rush in when they hear shots fired. They arrest Braden.

Meanwhile, Donnelly's wife goes into labor and her husband is MIA so Stabler drives her to the hospital. Later, Donnelly thanks him for having his back.

Stabler doesn't get Webb the guns, but he does get him something else: a statue of Cassandra's that also went missing.

To find out what happens, watch Law & Order: Organized Crime Season 2 Episode 18 online.