Religious motives are suspected in a couple's murder. Meanwhile, Laura and Jake look for a new nanny and encounter a familiar face in their search.

The detectives investigate when a woman suspects foul play after her husband, a fertility doctor, goes missing; the twins are accused of bullying at their Tae Kwon Do class.

The detectives probe the murder of an intern working at a trendy tech startup. Laura struggles to make time for intimacy with her new beau.

Laura helps investigate a sailor's murder, and she uses the case to avoid celebrating her birthday. Meanwhile, Billy must team up with a hard-nosed naval investigator.

The team go inside the world of NCAA basketball while investigating the murder of a teacher's aide, and Laura must balance this case with a huge personal crisis.

As Jake lies in critical condition, Laura and the team hunt his shooter, an assailant armed with a high-tech new weapon.

When two convicted killers break out of a maximum security prison, Laura and team join the manhunt, but their loyalties are called into question, since one of the escapees is their former captain

While tracking a killer, Laura navigates two love triangles: her own and one that may have ended in murder.

A perfume mogul is killed in a savage manner and the investigation yields no prime suspect. Laura and Jake are at odds when they try to define the current state of their relationship.

A stunning development leaves Laura in mortal danger and makes it clear that the murder case of Michael Dunham is far from resolved. It's a race against the clock as Laura fights to save her own life and take down a killer.

Valentine's Day takes a deadly turn when Laura thinks a long-dormant serial killer has re-emerged; secrets fly in the squad room.