When a college student claims rape and her professor claims it was consensual sex, Stabler and Benson find themselves in the middle of a he said, she said battle, trying to decide whether to believe the alleged victim, or the alleged perpetrator who claimed she liked it rough. Benson sides with Myra, the victim, whereas Stabler finds himself wondering if Polikoff is telling the truth about being innocent, especially after Myra falsely accuses Stabler of touching her inappropriately. After giving more thought to the situation, Benson and Stabler each wonder if the other is right. Stabler has bigger problems on his hands, though, as Myra's attorney reveals that Kathy has moved out and taken the children.

After young Sean Hamill is stabbed in the back at the schoolyard, detectives are led to Charlie Monaghan, the older boy who had previously gotten into trouble over Hamill, but it isn't long before their attention turns to Monaghan's half-sister Emma Boyd. Hamill had been torturing the little girl for months because she had two mothers. After getting a nice deal for Emma's side, Benson and Stabler are thrown for a loop when Emma's biological grandparents accuse Zoe, who had never legally adopted Emma, of sexually molesting the little girl, and evidence seems to support their claims.

A college co-ed's tale of rape and an unknown pregnancy is suspect after detectives learn that she's been linked to not one but two abandoned newborns.

Stabler and Beck disagree on how to handle a case involving a rapist who seems to be escalating his attacks. Beck is getting too personally involved in the case and with the victims, which Stabler warns her against. The key witness in the case is a pregnant woman who denies having been raped more than once by the man, whose goal appears to have been to impregnate the women.

The team investigates the death of a partially clothed teenage boy wearing a leather mask. The detectives discover that the victim's best friend is the killer and has a video, showing that the boy's death was the result of a backyard wrestling match gone wrong.

A woman's body is found murdered in a park alongside a man with a bullet in his head - Benson and Special Agent Cooper join forces and suspect "The Woodsman", a serial killer Cooper has tried to catch for years. Lake and Benson begin to question Cooper's true motives when the male victim is later identified as "The Woodsman".

When a pregnant woman's body is discovered in a burned-out brownstone, the investigation turns to a family of coffee importers.

One case becomes two as a murder leads to a serial rapist who is busy spreading disease along with his assaults, and the detectives' only clue is a website set up for casual and anonymous encounters.

Undercover FBI agent Dana Lewis returns to help the detectives with a case.