The detectives investigate the disappearance of a 17-year-old girl with Turner's Syndrome, a genetic disorder that contributed to her being teased and bullied at her prep school. Meanwhile, Stabler meets his new partner, former Warrant Officer, Detective Dani Beck.
The environmental group Olivia is infiltrating for the FBI is accused of murdering the CEO of a pharmaceutical company. But when she discovers that the crime may be sexual in nature, she conducts her own independent investigation.
A fourteen year old girl who was brutally beaten, raped, and killed shares the same dog paw tattoo as two other young female homicide victims. Despite warnings from Stabler, Dani becomes overly involved in the case.
Elliott thinks a possible rape victim is lying to enhance her divorce settlement. But Olivia thinks it's a sign of her husband's escalating violence, and believes that Stabler's judgment is clouded because of his divorce.
A woman accused of killing her baby commits suicide after being interrogated by an overzealous television reporter. It later turns out that the baby was kidnapped, perhaps by the baby's biological father.
Olivia finds her biological brother in New Jersey, but discovers that he is under investigation by local police for sexual crimes. But her obsession with finding him puts another investigation in jeopardy as well as her partnership with Elliot.
Benson (Mariska Hargitay) hears from her half-brother (Michael Weston), who is on the run because of sexual assault charges. He continues to claim his innocence, though because evidence continues to pile up against him, Benson reluctantly agrees to help in the investigation.