Debra Sullivan

The BAU profiles a child abductor who may have been keeping children for more than eight years.

Sean, a troubled 17-year-old boy who's been lost in the foster care system since he witnessed the murder of his mother, Rebecca, 14 years ago. The teen has recently been suffering intense nightmares about the incident, and a court-appointed psychologist asks Rush to reopen the case to finally give Sean closure.

Gang Detectives Sammy Bryant and Nate Moretta have their work cut out for them when an unidentified female is found dead in the middle of a Los Angeles alley -- and her body is being used for target practice by gang members. The tension mounts for Nate when his little sister disappears revealing a secret from his past that blindsides Sammy. Elsewhere, Detective Russell Clarke is offended by Lydia's suggestion that he was too personal during a consult with a victim's sister.

Summer is here, and Brandon breaks the news to Nat that he is quitting his job at The Peach Pit, to work at the higher paying Beverly Hills Beach Club, which he hopes will help him save money for a new car.