A father and daughter running a prostitution ring become prime suspects when Briscoe and Curtis investigate the death of a college student.
The murder of a corrections officer leads detectives to a women's prison where a guard was linked to an inmate Carmichael put away on drug charges.
The detectives struggle to determine the motive of a club owner who hired two men to kill a stripper.
Olivia's half-brother shows up looking for help when child services threatens to take his kids away; the investigation into an abandoned baby found by a homeless couple leads to a shocking discovery.
Twenty years after the death of their mother, a man kills his younger brother; clues lead Goren and Eames through a multitude of assumed identities.