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

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 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 murder of a crime tech sends shockwaves throughout the team. When suspicions arise that the tech had tampered with evidence for BPD cases, Maura is suspended from her position. Jane is determined to catch the killer and clear the department so Maura can be reinstated.

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.

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.

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.

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.

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.

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.

When Maura is abducted, nothing will stand in the way of Jane and the team bringing her home. Far away, Maura discovers a conspiracy that is bigger than just her kidnapping, with Jane as its ultimate target.

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?

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.

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.

The team works to solve a murder with explosive consequences; Ron offers to take Angela on a romantic getaway.

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