To Brenda's irritation, Pope requires her busy team to undergo hazardous materials training, interrupting their other duties. Fritz helps Brenda find a way around the resultant manpower problem. Brenda interrogates a frightened parking valet with obsessive-compulsive disorder who witnessed the murder of a fitness trainer. The trainer's less-than-brilliant girlfriend is married to a possessive and easily angered man, but some elements of the crime don't add up for Brenda. Meanwhile, she is too busy to cope with disturbing physical symptoms that she initially blames on stress.

Brenda is called in to investigate the murders of two Hispanic teens who may have been killed as part of racially motivated gang shootings over the past couple of months. A cousin of one of the victims is convinced that the incident is part of a racial war between African-American gangs and Latino gangs--and he's determined to exact revenge.

Brenda is called in to investigate the murders of two Hispanic teens who may have been killed as part of racially motivated gang shootings over the past couple of months. A cousin of one of the victims is convinced that the incident is part of a racial war between African-American gangs and Latino gangs--and he's determined to exact revenge.

The wife of a deputy district attorney is found dead on the beach, the apparent victim of a serial killer. The murderer's chosen weapon is a cattle prod that he uses to torture his victims prior to killing them. The squad's investigation becomes a race against the clock to prevent another woman from dying.