Sean Cullen

Three teenagers die from drug overdose, and Danny sets out to find their narcotic source and bring the responsible to justice.

Tony revisits his days as a detective in Baltimore after learning that his former partner is likely the latest victim of the port-to-port killer.

As Peter's trial begins, Alicia tries to keep her husband out of jail. Diane and Lucca make an aggressive move to expand the law firm, but face opposition from David Lee.

Benson and Stabler team up with detectives Briscoe and Green to investigate the death of an alleged sexual predator.

Sherlock questions his father's motives when Morland offers to have Sherlock and Joan reinstated as consultants to the NYPD.

A mother becomes Stabler and Benson's prime suspect in the poisoning of her child. Meanwhile, Novak enlists Clark's assistance in finding evidence to remove a judge from the bench, after his bias in two child abuse cases has shocking consequences.