Sean Cullen

When an art dealer is found stoned to death, detectives suspect that her killing may be linked to some of the art in her gallery, but a deeper look into her personal life reveals another motive.

The detectives attempt to identify a body that was found floating in the Hudson River; after the victim is identified, her husband becomes the prime suspect.

As Peter's trial begins, Alicia works desperately to keep her husband from returning to jail. Also, Diane and Lucca move aggressively to expand the law firm, but face serious opposition from David Lee.

When Morland offers to help get Joan and Sherlock reinstated as consultants to the NYPD, Sherlock questions his father's motives; Joan works with the FBI during the investigation of a triple homicide.

The DA's office asks Bull to assist them in their prosecution of a fraternity when a pledge accidentally drowns during a hazing incident.

Danny tries to find the source of a deadly narcotic after three teenagers die from an overdose.