The SVU squad tries to keep Detective Rollins' sister safe from her abusive boyfriend when she turns up beaten and pregnant; when Rollins is forced to take drastic action, an internal affairs investigation begins.

The investigation into how a comatose woman ended up in a river near the mayor's home reveals the victim's unexpected wild side.

When Rollins strikes a deal with the managers of a gambling club in order to protect her job, she ends up drawing the suspicion of Benson and Tutuola.

Amaro must face the consequence of his reckless behavior; when an online ad for escorts leads to the rape and robbery of tourists, Benson discovers she has a connection to one of the suspect's.

The team tries to find a bike messenger -- who has kept a video diary of his troubles with women -- before he can commit another violent act; the new deputy chief calls Benson's leadership into question.