Jamie seeks vengeance, putting him on a collision course with Ambrose.

Jamie pays Sonya a surprise visit. Ambrose goes to extreme lengths to get a confession.

After a major turn in the case, Ambrose's tactics are scrutinized.

Ambrose urges the NYPD to investigate Jamie for a new crime. Jamie struggles to salvage his life.

Ambrose pursues Jamie through New York City and tries to prevent another homicide.

Ambrose investigates Jamie's past. Leela gives birth as Jamie's anxiety reaches a breaking point.

Ambrose looks into Jamie and Nick's relationship before the crash. Jamie begins to unravel.

Ambrose discovers the source of Percy's ritualistic practices and dives deeper into her past.

As Ambrose zeroes in on a new suspect, a rift develops between him and Heather.

Detective Ambrose investigates a tragic yet suspicious car accident on the outskirts of Dorchester.

Heather and Ambrose continue their search for Julian as Marin’s past is unraveled.

A new suspect leads the investigation into an ongoing feud between the Lams and the Muldoons.

Ambrose heads to the mainland to learn more about Percy's past and uncovers dark family secrets.

When the Muldoons push to close the investigation, Ambrose refuses, pushing Sonya to the brink.

Ambrose returns to Mosswood to confront Vera about the commune's work.

A shocking new crime further rattles the town of Clark Harbor; Ambrose and Meg team together.

Heather makes a startling realization about Marin. Vera and Julian are dealt a hard blow.

Vera reveals Mosswood's past to Ambrose, leading to a turn in Julian's case.

When Ambrose begins to waver, Cora convinces him to take a risk for the case.

Ambrose and Heather begin to unravel where Julian is from. Julian is thrust into a new world.

Heather and Ambrose search for Julian.

Ambrose visits the town of Clark Harbor for a getaway and finds himself at the center of a tragedy.

Ambrose exposes the secret that threw Percy's life off course, setting off widespread consequences.

A troubled detective returns to his hometown to investigate why a young boy would kill his parents.

Unsure whom to trust, Ambrose hunts down his pursuers.