A serial killer claims to have clues about the murder of another prisoner; Frankie Jr. prepares to take the detectives exam.

After an undercover cop working a narcotics-smuggling sting is shot dead, the killers next turn their sites on Boston homicide headquarters, leaving Jane, Maura and Frankie Jr. trapped in a fight for survival on their home turf. It's a situation that will force Maura to challenge herself like never before. On the home front, Jane's parents are excited that their oldest child, Tommy, is being released after serving time in prison.

Maura becomes the key suspect in a homicide case when Maura’s date turns up dead – and Maura can’t remember their evening together. As the shocking evidence against Maura piles up, Jane struggles between protecting her best friend and doing her job.

The facts don't add up when a dead man is found handcuffed in his home. As the Bon Voyage party approaches, everyone makes a video to say goodbye. In the series finale, everyone says farewell and plans for their next adventure.

A woman walks into the station and confesses to killing someone; the team tries to unravel a bizarre case while dealing with the loss of a colleague.

Jane and Maura’s friendship suffers following the shooting of Maura’s biological father, gangster Paddy Doyle. Jane also finds herself in the middle of an Internal Affairs investigation. And her relationship with Agent Dean is exposed.

Jane looks for a way for Maura to meet her biological mother, Dr. Hope Davis. Angela gets involved in a political campaign. And a nun from Jane and Frankie Jr.’s past returns.

Dr. Hope Martin returns to ask Maura for a life-altering favor. Jane worries about the impending spinal surgery for Lt. Col. Casey Jones (guest star Chris Vance), and Tommy shows off baby T.J. But all gets shoved to the side when a building collapses, trapping loved ones inside.

When a warehouse fire kills a firefighter, Jane and Maura must investigate whether it was arson or an accident. But the investigation hits a snag when a hit-and-run leaves someone in the hospital. Guest star Billy Burke returns as FBI Agent Gabriel Dean, who hopes to rekindle his relationship with Jane. And guest star Jacqueline Bissett reprises her role as Maura’s mother, Constance Isles.

When the daughter of a police officer is kidnapped in front of her younger brother, Jane and the team race to find the girl, fearing her abduction is connected to another case in which a young girl turned up dead only hours earlier.

Tensions continue to mount between Jane and Maura, causing those close to them to be caught in the middle. But they must put aside their differences when they investigate the case of a college student who died in a tunnel. Meanwhile, Frankie Sr. returns with news that upsets Angela.

Young female professionals dressed as dolls are turning up dead on the public transit system, and Jane and Maura must piece together the clues. Angela implements new ideas for the café. And Jane learns more about how Casey was injured.

On the first day of Paddy’s murder trial, Maura gains insight into her father from Hope. Korsak opens up about Cavanaugh’s tragic past. And in an unexpected twist, Maura must decide which side she’s on when she and Jane unravel a shocking secret about Paddy and Hope that affects them all.

Boston Homicide teams up with the FBI after a bank manager is shot during a robbery. Jane’s brother Tommy may be facing more trouble just as his relationship with Maura begins to grow. Tessa Thompson guest-stars as by-the-book FBI Agent Anna Farrell, who has a complicated history with Detective Frost.

When a man having breakfast in the Division 1 Café dies from poisoning, Jane and the team must quickly find the source as Angela and the irascible Stanley both come under scrutiny. Meanwhile, Tommy wants proof that he’s the biological father of Lydia’s baby as she returns to take the baby back. And Detective Korsak is reunited with one of his ex-wives.

When a young dockworker is found dead, the team discovers that there are mob connections; Jane tries to avoid sensitivity training; Maura starts spending time with Jane's brother.

The world of competitive dance turns deadly when the mother of a star performer is stabbed to death at a competition. Jane and the team search for clues, but they soon realize something is off about the woman’s history. Korsak has his hands full when his stepson is accused of shooting a cop. Guest star Lolita Davidovich returns as Korsak’s ex-wife Melody.

When a statue breaks open to reveal a dead woman inside, Jane and Maura must find the killer quickly as the body count begins to rise. Back at headquarters, a new homicide detective is named to the squad. Meanwhile, Dennis Rockmond returns to Boston after disappearing on Maura and tries to woo her back. Lydia goes into labor.

A popular high school teacher is killed in a hit and run that is clearly no accident. The squad works to solve the case, but Jane is preoccupied with Lt. Martinez’s apparent favoritism towards his own drug unit.

When Maura meets a new guy named Dennis in a very unusual way, he opens up a different side of her. And Jane is filled with mixed emotions after someone from her past returns.

After taking a bullet in the Season Finale during a siege of the precinct, Jane Rizzoli is honored as a hero at a public event. The celebration is short-lived, however, when disaster strikes. The ensuing case reunites Jane with an old high-school flame, Sgt. Major Casey Jones, who may be just the person she needs to heal her emotional scars.

A senator's daughter is found murdered; Tommy begins to slip back into old habits; Jane reveals some shocking news.

A community parade turns deadly in a case that brings family tensions and politics to the forefront. Maura, who is dealing with her own family issues, is not quite herself. And a surprise visit from Lt. Col. Casey Jones reveals some shocking news.

A boy band star returns to his roots for a show and winds up murdered. Jane and Frankie, who grew up with the victim, work hard to solve the case. Meanwhile, Jane and Maura must decide if it’s time to tell Angela the truth about Lydia’s pregnancy just as Angela prepares to throw her a baby shower.

An investigation leads Jane into Boston's checkered past when an identity thief is murdered; Maura goes on a personal quest.

When Jane and Maura are asked to present the case of serial killer Charles Hoyt at a symposium for law enforcement, Jane worries that her greatest challenge will be facing bad memories. However, as she and Maura begin a simulation of investigating Hoyt’s murders, they soon come across a horrifying discovery. In a matter of moments, the team finds themselves drawn into a lethal game of cat and mouse with a new and terrifying serial killer.

The team tries to find a witness to the contract killing of a woman outside of a nightclub; Jane puts herself in the line of fire.

The team's skills are tested when the mummified remains of a woman are found; Jane tries to recover from a devastating loss.

A notable county prosecutor is arrested for murder; when Angela hears that Maura is planning to meet Jack's daughter, she sets out to educate Maura about the interests of children today.

When a State Trooper is killed in Maine, the getaway car is traced back to the mastermind of the attacks on Jane. The team must now unravel the mystery of the mastermind's obsession with Jane in order to keep her safe and turn the hunter into the hunted. Meanwhile, Korsak prepares to tie the knot with Kik

Jane is unhappy when a former colleague returns as the new lieutenant of the drug unit; a tip from Cailin causes Maura to investigate Hope.

The shooting of a community activist brings out a witness who's willing to testify. TV host Bill O'Reilly airs his disapproval of the police department.

Jane and Maura investigate the mysterious death of a young boy whose family is from Cape Verde. It appears at first that he may have died during an attempted exorcism, and it may take a message from beyond the grave for Jane to pinpoint exactly what happened. Jane is distracted from the case when her mother sets her up on a surprise date.

The good news is the team finds a witness to a murder. The bad news is he suffers from Prosopagnosia, commonly known as facial recognition blindness, and he can't recognize the killer. The Rizzolis prepare for a visit from their scheming cousin Carlo.

Jane and Maura find themselves submerged in the cutthroat, high stakes world of competitive bass fishing when a tournament-leading fisherman is killed. At the same time, Frankie is paying the price after losing a bet.

The squad works overtime hunting down a serial killer sniper. Maura befriends a witness to the crime, who happens to suffer from a mental condition that has him believing he is a wolf.

After a man is found bludgeoned to death on the side of the road, Jane and the squad team up with another detective who believes he is hunting the same roadside killer. Meanwhile, Maura discovers she has had her identity stolen and recruits Angela to help track down the culprit.

When a wealthy woman is found dead at the bottom of her stairs, we realize that this was no ordinary slip-and-fall accident. The team is pressed into a game of cat and mouse with a clever killer determined to get away with the perfect crime. Plus, when Maura decides to undergo minor surgery, the surprising part of her healing will be reconnecting with Hope.

When a severed human foot washes up on shore, the squad is called in to identify the victim and track down the murderer as more body parts are found. After an unsuccessful job hunt, Angela finds she enjoys helping out Korsak at the Dirty Robber.

Jane and Maura must unravel an old ghost story to solve a double murder at a hospital; Angela convinces Frankie to stop avoiding Kent.

The squad is forced to join forces with an over-eager private investigator when a successful clothing designer is found poisoned and his wife reported missing. Jane notices Angela is spending too much money and asks Maura to teach her mom how to handle her finances.

The team works on behalf of the dead - and the undead - after a murder at a zombie convention. Angela decides to pursue her GED after revealing that she never graduated from high school.

When a 16-year-old girl is murdered and left in a cage, Jane and Maura must overcome the ethical dilemma of a psychiatrist and the stiff opposition of a fussy prosecutor to find the killer. Meanwhile, Jane has couch issues, and Frankie is seeing UFOs.

When the jeweler to Boston's super cool and famous dies, the investigation leads us to a member of the Isles family. That leads to a secret Maura has been keeping for almost all of her life.

When a dog trainer is found dead at home, her champion Rottweiler is the prime suspect. As the team investigates this unlikely killer, Maura has a peculiar interaction with Kent.

A security guard foils a robbery when he kills one of the robbers, despite being wounded himself. Jane and Maura work together to solve the case after the search for the robber's accomplice raises some puzzling questions. Jane continues her quest to protect Maura and Angela. But is the price too high?

Jane and Maura are called to the BCU "Body Farm" -- an academic research facility dedicated to the study of human decomposition -- when a murder victim is found buried in a shallow grave among the research corpses. Angela also has secrets she is keeping buried from Jane.

The murder of a notorious thief sends Jane and Maura into the world of art heists and forgery and forces Jane to tango with an F.B.I. Agent who has a keen interest in her case. There's also a new man in Angela's life.

The eldest brother in a Boston “Brahmin” family (direct descendents of passengers on the Mayflower) is found in the harbor dead after an apparent sailing accident. But Maura’s close connection with the family and Jane’s resentment over the wealth they display threaten to derail their investigation. Angela, meanwhile, tries her hand at selling a Polynesian health drink.

When a gun battle rages in a quiet neighborhood, Jane and Maura are thrown into the secretive world of an Eastern European gang; Maura comes down with a fever.

A woman is murdered in a grisly scene reminiscent of a horror film, prompting the team to investigate a chilling game in which players pay to experience sheer terror.

The murder of a college student takes an odd turn when Jane and Maura discover he had 32 girlfriends. Uncovering who killed him and why leads them into a world of app developers, virtual boyfriends and relationships built on lies. Meanwhile, Korsak finally introduces everyone to the new woman in his life.

After a body turns up in Boston with links to another murder in Los Angeles, Jane and Maura pack up their sunscreen and hop on a plane. With the girls out of town, Angela and Korsak plan a double date with Kiki and Ron.

Detective Jane Rizzoli and medical examiner Maura Isles investigate the grisly murder of a wealthy couple. The M.O. matches the work of a serial killer known as the Surgeon, who once nearly murdered Jane. Now that the Surgeon is behind bars, it seems one of his proteges is picking up where he left off.

A musician is stabbed in a bar; the squad realizes that the stabbing victim had something to hide; Jane's father returns with shocking news.

In the aftermath of a shooting, the team must work to find Alice Sands (Annabeth Gish) and bring her to justice before she destroys Jane's life.

The team have to find out the identity of a killer of an unarmed man as they attempt to clear their detective's name.

When an old watch is found inside a balloon of cocaine in a dead woman’s stomach, figuring out it’s significance becomes the key to protecting Jane -- and the people she loves.

After Jane jumps from a bridge to save a prosecutor suspected of his murdering his mistress, Maura is terrified that she has lost her best friend. The squad must now renew the search to find the real killer. Meanwhile, Angela enlists Frankie's help as she applies to new jobs.

After a student is gunned down in broad daylight, the investigation reveals she had more than a few secrets. Meanwhile, Jane’s mother Angela gets into a spat with her father over the car.

When a woman finds her husband has been murdered, the ensuing investigation reveals that the victim may have been living a double life.

Tensions are high as the squad investigates a possible copycat of the legendary Boston Strangler…or could it be the Boston Strangler himself? Meanwhile, Jane butts heads with her new boss, Lt. Grant, who just happens to be from the same neighborhood where Jane grew up. And Maura gets into trouble with her habit of diagnosing everyone – including her date.

Jane and Maura investigate what appears to be a hate crime, the brutal assault and murder of a woman leaving a lesbian bar. With Jane going undercover, they hope to lure the killer out in the open. Off the job, Maura hooks Jane up with a handsome yoga instructor.

When a mailman is killed, the team must work with a brash, eccentric postal inspector, who believes the mailman's murder is part of a larger conspiracy. Maura continues to struggle with the ramifications of her injury, and Angela intervenes when she discovers Korsak has gotten Kiki a terrible birthday present.