John L. Curtis

When a convicted ex-cop is brutally murdered, the team finds he kept a list of suspects for his wife's murder.

.Melinda investigates the sudden death of a high school athlete.

Jack and the team must determine if a missing nanny is a kidnapping victim or a suspect when she and the infant in her care disappear. A caller then demands a ransom in exchange for the safe return of June and the child.

The team searches for Jack's friend Max Cassidy, a longtime FBI agent who disappears after leaving an emotional message on his wife's answering machine about the murder of his partner, Jimmy Haggerty. The squad investigates whether the industrial espionage case that Max and Jimmy were working on is connected to Jimmy's murder and if Max is now a victim of Jimmy's killer.

The team searches for a missing psychologist whose brother has a criminal past. Plus, Martin's relationship with Kim (recurring guest star Vanessa Marcil) heats up.

The team members search for a male college student who vanished after making provocative, racist statements about African Americans to an acquaintance during a classroom discussion. Their investigation leads to the discovery of a family secret that could be connected to the man's disappearance. Nancy McKeon (The Division) guest stars as Gail Sweeney, the mother of the missing man. Michael Dorn (Star Trek: The Next Generation) guest stars as Nathan Riggs.