NYPD detective Danny Reagan teams up with Boston detective Lena Silver to investigate a deadly fire at a tech company. As they dig deeper, they uncover a complex web of secrets involving facial recognition technology, family ties and a search for justice that brings the Silver and Reagan families closer together.

Lena and Danny are pulled into a high-stakes murder investigation when a whistleblower tied to one of Mae’s court cases is found dead. Meanwhile, Jonah and Sean prepare for their first official day on the job.

A body found on the Boston wharf pulls Lena and Danny into a tense drug investigation alongside Lena’s former partner, Detective Brian Rodgers, sparking personal and professional friction. Jonah and Sean chase down a missing man tied to a scavenger hunt, while Sarah and Mae navigate emotional challenges at home and in court.

As the Silver family observes Yahrzeit to honor patriarch Ben Silver on the one-year anniversary of his death, Lena and Danny investigate the murder of a beloved shop owner. Meanwhile, Sarah responds to a hostage crisis and Mae faces a difficult legal decision.

Danny and Lena take on a high-stakes murder case that leads to one of Boston’s most infamous unsolved crimes. Meanwhile, tensions rise within the Silver family as a complex shooting case sparks debate over accountability and parenting.

With an assist from Baez, Danny and Lena hunt down a serial home invader. Sean’s budding romance faces unexpected complications. Meanwhile Mae and Sarah uncover a troubling leak that could upend the justice system.

Lena’s pursuit of justice forces Danny into an unexpected role reversal, while Sarah faces a personal dilemma that tests her resolve. Meanwhile, Mae contends with political pressure, and Sean and Jonah uncover more than they anticipated during a routine case.

Danny and Lena’s investigation into a robbery gone wrong quickly turns personal, pushing Lena to devise a bold plan that tests Mae’s boundaries. Meanwhile, Sean and Jonah face rising tensions with Boston’s firefighters, and Sarah clashes with boyfriend Seth over family discipline.

Mae faces public and family backlash over the consequences of her past decisions, while Sarah struggles with guilt that pushes her to take risks in pursuit of justice. At the same time, Lena and Danny dive into a tense homicide case, and Jonah’s anger over his father’s death threatens to unravel fragile family ties.

Following the release of Ben’s killer from prison, Jonah continues to struggle with anger and grief confronting the killer and putting family bonds to the test, and Mae and Sarah face painful truths that could change everything. Meanwhile, Danny and Lena take on a high-stakes case that uncovers deep-rooted secrets and forces unlikely alliances.

Danny and Lena work to halt a crime spree before it escalates, while Sarah's family plans go awry. Meanwhile, Jonah and Sean pursue a case full of surprises, and Mae gets an invitation that may alter her life.

Danny, Sarah and Lena race against time to prevent a threat on St. Patrick's Day. A family gathering addresses homesickness, while Lena's personal life shows promise.

A church shooting draws Lena and Danny into a Reverend Peters associate's complex history. Mae confronts difficult family truths, the team deals with internal tensions, and grandfather Henry visits.

Sean and Jonah go undercover to find a dangerous threat targeting Boston's young adults. Sean faces unresolved past connections while the team deals with personal revelations, family worries, health scares, and increased public scrutiny.

A Brooklyn murder case forces Danny and Lena to team up with Danny's ex-partner Maria Baez in a cross-city investigation. They work to find the truth and shield a victim while facing tests of loyalty and ethics amid complex family issues.

A transplant error at a hospital sparks a crisis. Danny and Lena defuse tensions as their team discovers a sinister connection. An encounter prompts Lena to revisit her past.

When a captured serial killer hints at the whereabouts of a missing child, Danny teams up with a familiar ally in a tense race against time. Meanwhile, health scares and long‑kept family secrets surface, forcing members of the team to confront personal truths.

When a college basketball star is threatened, Danny and Lena race to protect them while solving a murder. Meanwhile, deeply personal conflicts and moral dilemmas surface, forcing the team to confront difficult truths about loyalty, identity and justice.

A deadly threat strikes close to home, pulling Lena, Danny and the team into an intense investigation that stirs buried grief and tests their resolve. At the same time, Mae faces a political and personal reckoning, prompting a revelation that pushes Lena toward a life-changing decision.

A dangerous investigation collides with pivotal personal and professional decisions, pushing the team to their limits. As the D.A. election draws closer, shifting dynamics and an unexpected incident heighten the urgency and raise new questions for everyone involved.