The investigation into the death of a governor's wife uncovers a web of infidelity, greed, and corruption which forces McCoy to counter a defense based on a ground-breaking interpretation of spousal privilege.

The shooting of a Panamanian jockey sends Fontana and Falco into the colorful world of horse racing, and they learn that the animal's owner used stolen funds for the purchase.

The team investigates the killing of a single mother and the abduction of her child.

After the daughter of one of Van Buren's college friends is found dead in her room, a suicide, Van Buren joins Green and Fontana in hunting down the man who burned her face with acid months earlier, ultimately leading to her suicide. Van Buren is unsucces

After the body of a teenage boy is found dead in a warehouse, detectives use DNA to connect the boy to a convicted rapist and serial killer, then to the boy's mother, Allison Ashburn, the convict's ex-wife. While trying to solve Danny's murder, Fontana and Green learn that he recently got his girlfriend Tina pregnant, and his mother had seen him recently when she had given him money despite having claimed she hadn't seen him for months. Allison finally admits that she murdered her son after the police arrest her new husband John, but claims she did it to save the world from her son, whom she was convinced would become a monster just like her father. Borgia and McCoy face an uphill battle trying to convict the perfect soccer mom.

After Hudson Moore is found bludgeoned in the back of the Babes Being Bad bus, suspicion initially truns to the company's creator, Chris Drake, until video footage leads detectives to a young woman who was with Moore the night that he died. After concentrating their investigation on the young woman, the reasons behind Moore's murder soon become apparent, and McCoy and Rubirosa struggle to prosecute a man who, while not directly responsible for the murder, may have been responsible for the incidents that led up to it.

Green and Cassady investigate after Sean Archer, a producer who had recently adopted a child from Africa with his wife, well-known actress Sofia, is gunned down outside an ice cream shop while holding baby Christopher. The shooting is soon linked to the recent adoption of Christopher, which had received international scrutiny because it appeared to have been pushed through based on the couple's celebrity status. McCoy and Rubirosa initially investigate the murder of Sean Archer, which soon turns into an investigation of a child's death when the identity of baby Christopher comes under question.

When a family of four is found murdered in their home, Detectives Cyrus Lupo and Kevin Bernard discover that the deaths may be related to the deceased teenage daughter's troubled friend, Bonnie.