The ugly truth behind his mother's murder has left LAPD homicide detective Harry Bosch as tense and restless as ever. A homeless veteran is murdered. Bosch works a high-profile trial involving a Hollywood director. The Veronica Allen proceeding nears resolution. Bosch keeps tabs on a longtime criminal who's eluded justice.

A suspected killer whom Bosch has pursued for several years turns up dead in an apparent suicide. Edgar discovers that Harry has a complicated history with the dead man. When the case is later ruled a homicide, Detective Jimmy Robertson develops troubling theories about the culprit.

Bosch learns more about the dark past and murder of Billy Meadows. The credibility of a key witness threatens to undermine the Holland case. Edgar maneuvers to handle damning evidence. Dangerous men target Bosch.

The secret effort to smear Bosch intensifies. Harry and his colleagues struggle to uncover who's trying to frame him. Irving closes a chapter in his personal life, but is ensnared in departmental politics. Bosch digs into the history of former soldiers under suspicion. Killers pull off a major score.

Bosch and Robertson work a promising lead in the Gunn case. Further evidence gets the team closer to solving the Meadows murder. Irving does damage control on another crisis related to Bosch. Edgar takes action. The Holland case is on the brink.

Bosch operates behind-the-scenes to expose wrongdoers. Killers are in the wind. Edgar deals with the fallout of a crucial choice.

Bosch's relentless pursuit in the Meadows case reaches a climax. Bosch and Edgar talk about a startling discovery. An unexpected visitor drops in on Bosch and Maddie. Harry learns that his history is far from settled.

Bosch and Edgar follow a lead in the arson fire case to the famed Magic Castle. Lt. Billets ruffles feathers in the officer ranks. After Chandler’s new client Vincent Franzen spends a night in jail, he offers up a “muy grande pescado” as his get-out-of-jail-free card.

After discovering Alvarez has been transferred, Bosch enlists Chief Irving’s help. Pierce and Vega get a lead on the hitman. Billets reaches out to a former Hollywood cop for intel on Leonard and Norris. When Bosch and Edgar meet with Carl Rogers, Edgar lets a detail of the case slip, enraging Bosch.

After Maddie’s involvement with the Franzen case leaves her exposed, she must testify before a grand jury to stay safe. Irving asks FBI SAC Brenner for help with Alvarez, learning something useful about Peña. The little tamale girl’s father pays Bosch a visit; his pain strengthens Bosch’s resolve to bring her killers to justice. Leonard and Norris push Billets to the brink.