Al and Carrie seek to find the killers in a gang related shooting at a teen recreation center. As Carrie and the team work the scene, a melee breaks out. Shots are fired, leaving one more victim dead and two others wounded. Carrie uses her memory to track who was at the shooting, and what they may have had to do with the crime. In the end, Carrie finds that the man who was shot had a son who was invloved with the gang. Even though this man was taking care of getting gang kids off the streets, his own son was involved with the wrong group.