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 Kiki.

The clock is ticking as the team works to solve a murder with explosive consequences. Angela balks when Ron offers to take her on a romantic getaway.

When a gun battle rages in a quiet neighborhood, leaving one dead, Jane and Maura are thrown into the secretive world of an Eastern European gang. Maura comes down with a fever while juggling work and play, and Angela and Kent prescribe several home-remedies that have a surprising effect.

A woman is found murdered in a grisly scene reminiscent of a horror movie, leading the team to uncover a frightening "game" in which people pay to experience terror.

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?.

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.

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 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 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.

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 the jeweler to Boston's super cool and famous dies, our investigation leads us to a member of the Isles family we've never met. And that leads us to a secret Maura has been keeping for almost all of her life.

Jane and Maura have to try and overcome some difficult obstacles to locate the killer of a 16-year-old girl.

A murder witness has to deal with a condition that is known as facial recognition blindness.

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 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.

A murder victim is discovered in a shallow grave at an academic research facility dedicated to studying human decomposition. Meanwhile, Angela hides secrets from Jane.

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.

When it appears one of our own shot an unarmed man on a busy Boston subway platform, the team must fight to find the real killer while clearing our detective's name. But with Internal Affairs breathing down our necks, it becomes clear that the circumstances surrounding this shooting are anything but clear.