The Major Crimes unit continues to investigate the conspiracy behind Dwight Darnell’s murders and his links to the Zyklon-Brotherhood. Sharon Raydor, disturbed by her own reactions to the case, seeks penance in the Ritual of Confession.

The Major Crimes unit gets closer to the elusive mastermind behind the Dwight Darnell murders; Buzz and Rusty's investigation into the murder of Buzz's father comes to an end.

When Captain Sharon Raydor and the Major Crimes Division investigate the murder of a young woman found in the LA River, their case is not only impeded by a secretive PI working for a tech industry millionaire, but also by Deputy Chief Winnie Davis, who regards Sharon as competition for the promotion to Assistant Chief of the LAPD.

When Major Crimes discovers a young one-man-geek squad in the middle of his Atwater living room with his throat cut, suspicions swirl around his roommate and some unwitting customers, all of whom he was blackmailing.

A heavy body is found forty feet up a tree surrounded by marijuana when Dr. Morales shows up with his father, a retired detective from Uruguay; Julio Sanchez works to get legal guardianship of Mark Jarvis; Andy Flynn prepares a surprise for Sharon.

Sharon's son, Ricky, comes home for a surprise visit while Major Crimes investigates what looks like the "follow home" murder of a retired LAPD fraud detective, who may have been murdered for an arrest she made decades ago.

As the war between bikes and cars escalates in the streets of L.A., Acting Assistant Chief Fritz Howard deploys Major Crimes to solve a tragic hit-and-run. Lt. Provenza, frustrated by the never-ending contest to succeed Russell Taylor, contemplates retirement.

A murder investigation turns explosive while Captain Sharon Raydor duels with Deputy Chief Winnie Davis (guest star Camryn Manheim) for control of her case as she and her squad try to determine if they are dealing with a terrorist. Meanwhile, Rusty gets some alarming news from Gus.

After discovering the identity of the bomber her division has been searching for, Sharon Raydor and the Major Crimes squad struggle to determine his next target.

When three fifteen-year-old boys vanish from a Catholic school field trip, new Asst. Chief Mason orders Major Crimes to treat their disappearance as a critical missing. Meanwhile, Sharon receives more evidence that Phillip Stroh may be returning to Los Angeles.

While the search for the missing boys continues, the squad faces off with an untrustworthy priest, an angry ex-husband and threats from the FBI; Rusty startles Flynn and Sharon with a surprising request.

As Major Crimes continues to search for the remaining St. Joseph's Three, Sharon finds her personal life threatening her career.

While dealing with a difficult personal matter, Raydor continues to investigate the disappearance of the St. Joseph's Three, their relationship with an overly protective priest and the possibility that two of the 15-year-old boys could be killers.

As the case of the St. Joseph's Three leads to its unexpected conclusion, Sharon attempts to balance the case, the arrival of her family and her fast approaching wedding to Lt. Andy Flynn.

When a well-known attorney, celebrated for her defense of oppressed women is found dead, there are no shortage of high-profile suspects, including her son, her ex-husband, a film director whose career she helped destroy and a former football player whose sports bars/restaurant chain, Tackles, features scantily clad women. Meanwhile, Rusty and Gus confront issues in their relationship.

As the squad investigates the mysterious death of a second woman related to the Tackles case, and a new theory materializes, Sharon faces a health setback. Meanwhile, Gus reacts unexpectedly to Rusty's partial solution to their ongoing relationship problems.

While working two seemingly connected murders, the division suddenly uncovers a series of sexual assaults against servers from Tackles. As a new theory about the killer gathers steam, however, an unexpected twist throws Major Crimes off course and Sharon Raydor off- balance.

Sharon Raydor must make decisions related to her ongoing health problems while arriving at the solution of a series of murders and sexual assaults.

In the penultimate episode, Phillip Stroh and his young British accomplice edge closer and closer to their end game, while Lt. Provenza continues to push Asst. Chief Leo Mason into pouring more resources into the case. Rusty digs up an important clue.