When a gay man is murdered, seemingly the latest victim of a string of hate crimes, Brenda must confront prejudices inside and out of the LAPD. But when the perpetrator of the crimes turns out to be something quite different than expected, and has an alibi for the latest murder, Brenda must dig deeper to discover if this crime is part of the string, or a crime of passion disguised as a hate crime. Meanwhile, Flynn and Taylor step up their efforts to undermine Brenda once again, but with unexpected effects, as the team begins to rally around Brenda. Provenza's quirks begin to emerge, and we meet Terrence Hynes, a County Coroner's Forensics Support worker with an odd sense of humor. On the home front, Brenda finds herself with some new charges when her (male) Kitty has kittens.

Brenda and the PHD investigate a high-profile case when a woman is brutally murdered at L.A.'s trendiest restaurant. On the home front, Brenda tries to keep a low profile as she closes in on her 40th birthday.

Resulting from the showdown in the murder room, Brenda finds herself taking some involuntary time off. When she is asked to help a friend solve a murder that is linked to a terrorist group, Brenda works to find the killer and still keep it under wraps. Meanwhile, Commander Taylor jumps at the chance to break apart the PHD while Brenda is away.

The body of a long-dead murder victim is uncovered along with Lt. Provenza’s business card, setting off the squad’s search for his identity and killer. When the bullet is traced to a gang weapon that had been turned into the LAPD 15 years prior, Deputy Chief Johnson is forced to contend with political activist Father Jack.

When two Catorce gang members are shot to death, Brenda and her squad must solve the murders before a gang war erupts. Meanwhile, Brenda has her own personal health scare when she finally visits the doctor.

Brenda and the team must determine if a murder was revenge or mere coincidence when a recently released murderer turns up dead, the victim of a hit-and-run. As usual, Brenda's personal life isn't much better: she must deal with a recently incapacitated Fritz.

Provenza and Flynn lose the evidence in an attempted murder case when Provenza's car is stolen; Pope is not happy when Brenda is forced to free the suspect and gives her and the squad 48 hours to retrieve the car, the evidence and the suspect.

Brenda seeks help from a businessman, played by guest star Jason George (Grey's Anatomy), with old ties to the neighborhood where Turell Baylor was murdered.