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.