Brenda investigates the murder of a woman and the wild fire she was found in, complicated by the reappearance of Bill Croelick who is either the likeliest suspect or the best resource she'll ever have to find the killer.

The HPH team investigates the hit-and-run death of one of Flynn's old cases, and Brenda works on her political skills when it turns out the case may lead to a Hollywood director and his wife.

Brenda does battle with a Sheriff's commander when his son is implicated in the suicide of a girl he was accused of raping.

A murdered man wearing a wire is discovered in an alley, and once he's identified his ties to an FBI drug case put Brenda in conflict with Fritz.

Priority Homocide conducts a sting operation in which Lieutenant Provenza poses as a hit man in order to arrest a woman, Angie Serabian, who is planning the murder-for-hire of her husband. Complications arise, however, when Provenza's car, which contains all the evidence, is stolen, putting Provenza's career on the line. Unable to hold Angie for her crime, the team must try to protect her husband from any further attempts on his life. When Mr. Serbian is murdered later that evening, and it is unclear whether or not Mrs. Serbian is responsible, the team goes into overdrive to solve the crime.

When thirteen-year-old Serge Monroe goes missing, Priority Homocide treat it as a "Critical Missing" because of his age, until facts about the boy's violent history comes to light. When the boy is found murdered, there is no shortage of suspects.

When Det. Julio Sanchez brother is murdered in a drive-by shooting, Brenda has the rest of her team put into full force to find out who was responsible, but finds her work compromised by residents in the South-Central L.A. neighborhood reluctant to come forward, and a vengeful Det. Sanchez determined to find the culprit on his own through any means necessary.

In another brush with fame, Brenda and the team must investigate the movie set murder of a hairdresser. Meanwhile, Brenda tries to get her meddling and overbearing, parents out of her hair (and her house) when they come to town during their annual road trip from Georgia, and they both work her into a lather over her yet-to-be-planned wedding to Fritz.

Brenda takes on the Catholic church and obnoxious Ricardo Ramos as the team investigates the deaths of two Mexican policeman, and face the possible end of the high priority homicide unit.

Brenda and her newly christened Major Crimes Division investigate the victim of a crude pipe bomb that exploded too soon, and the case leads them to disaffected teens whose plot will make one of the team a deadly target.

Dr. Morales calls in a favor when he believes a suicide is murder, interfering with Brenda planning her wedding with her parents.

Brenda's personal day is ruined when a body is found in a trunk, without the diamonds he stole.

Brenda and her team match wits with a sex offender's lawyer in a case involving murder and a serial rapist, and when Deputy DA Garnett forces an unpalatable plea bargain no on is prepared for the result.

Fritz' sister, a newly-discovered 'intuitionist', assists Brenda and her team with a case that involves text messages that imply a murder and a suicide that isn't what it seems.

Brenda and Fritz both deal with cases on the day before their wedding; Provenza puts his foot down, resulting in a resignation.