The season opens in the aftermath of last season's shooting.

The entire Boston Police Department hunts for Alice Sands.

Michael and Nikita's relationship is strained as Nikita and Owen team up against a rogue "cleaner" named Liam.

At last Calgary is believed, but Rachel's killer is backed into a corner and is ready to lash out to protect their identity.

When a body turns up at a posh country club in a quiet neighbourhood, the squad's investigation leads them down a money trail full of surprises.

Cole confronts his past when his former mentor, Tom Barnes, delivers alarming news, as he and Murtaugh investigate a robbery of safe deposit boxes. Meanwhile, Murtaugh clashes with Trish's new client, Louie Gutierrez, and enlists Bailey's help to investigate her.

At last Calgary is believed, but Rachel's killer is backed into a corner and is ready to lash out to protect their identity.

When a body turns up at a posh country club in a quiet neighbourhood, the squad's investigation leads them down a money trail full of surprises.

Christmas vacation is interrupted for the Major Crimes division when a baseball scout is found dead in his RV. The squad works through the murder case, unfolding a complicated kidnapping scheme.

Michael and Nikita's relationship is strained as Nikita and Owen team up against a rogue "cleaner" named Liam.

The season opens in the aftermath of last season's shooting.

The entire Boston Police Department hunts for Alice Sands.

Cole confronts his past when his former mentor, Tom Barnes, delivers alarming news, as he and Murtaugh investigate a robbery of safe deposit boxes. Meanwhile, Murtaugh clashes with Trish's new client, Louie Gutierrez, and enlists Bailey's help to investigate her.

At last Calgary is believed, but Rachel's killer is backed into a corner and is ready to lash out to protect their identity.

When a body turns up at a posh country club in a quiet neighbourhood, the squad's investigation leads them down a money trail full of surprises.

Christmas vacation is interrupted for the Major Crimes division when a baseball scout is found dead in his RV. The squad works through the murder case, unfolding a complicated kidnapping scheme.

Michael and Nikita's relationship is strained as Nikita and Owen team up against a rogue "cleaner" named Liam.

Eight family members are executed in one night as detectives must unearth the hidden motive to track down the killers. While the community mourns, investigators analyze bloody footprints to determine which path leads to the truth.

Murtaugh turns to Cole's former mentor, Tom Barnes, for help on a high-stakes cartel case. Meanwhile, Murtaugh and Trish meet Natalie and Maya for the first time, and tensions mount between Bailey and "The Gute" as the new partners begin to work together.

The day's events bring all of our cops face to face with some of their greatest fears. The death of a baby shakes Lydia to her core.

Through a prison interview, Robin Murphy’s harrowing account brings everything into question. Her story paints a picture of corruption and neglect that reveals a truth never before considered.

Simon’s mother asks Alec to help stop a suicide contagion when a third student death strikes the campus. Alec ask Marisa to help when he thinks there might be more to the case.