The unit's investigation of six unsolved homicides involves the detectives in a violent drug turf war. Things get worse when a peace demonstration proves to be anything but, and Giardello (Yaphet Kotto) begins showing signs of being close to a total breakdown. And in a more lighthearted development, Kellerman (Reed Diamond) is dying with curiosity over the identity of the person who is currently dating Lewis (Clark Johnson). ~ Hal Erickson, Rovi