Detective Harry Bosch learns the DA's office is examining new evidence which threatens to overturn an old case, potentially jeopardizing all of Bosch's other convictions. Meanwhile, a robbery turned murder at a local pharmacy exposes an opioid ring that drags Bosch down a dangerous path.

Bosch discovers there’s more to Alicia Kent’s story than meets the eye. Elizabeth Clayton calls with news that jump starts her daughter’s cold case. Edgar and Hovan craft a plan to move in on Avril, Crate and an old buddy have an eventful night, and Antonio asks Maddie to introduce him to Bosch.

Chandler brokers a plea deal that leads to a confession, giving Bosch and Edgar all they need to go after Kent’s killer. Bosch digs deeper into a street hustle involving Daisy, but Elizabeth causes trouble when she pursues a lead on her own. Irving pitches a new task force aimed at combatting homelessness, and Billets puts Vega and Pierce in an awkward position.

Working to close the murder of the Federal informant, Bosch and Edgar reveal an explosive new clue. Dwight pressures Edgar to do more to bring his son’s killers to justice. Barrel receives a politically damaging old recording of Chief Irving. Billets adds a familiar face to her new task force, while Pierce makes a report to Captain Cooper that causes friction.

Six weeks later, Judge Sobel hears Chandler’s objections to Bosch’s key evidence against Alicia Kent. Irving’s new task force has a win. Hovan and Edgar are on the verge of bringing down Avril. Billets gets a call from IA, and while working his way through a list of new suspects in the Daisy Clayton case, Bosch uncovers a chilling connection.

Bosch closes in on a suspect in the Daisy Clayton murder as Elizabeth begins to unravel. Edgar discovers Avril is as cunning as ever, and worries he’ll slip away. The car czar makes a hard play to force Irving out of the mayoral race, and IA investigates the complaint against Billets. In Bosch’s crosshairs, Daisy’s killer makes a shocking confession.

Irving and Maddie make big decisions about their futures. Bosch and Edgar, having weathered unexpected tragedies, share bitter frustration with a system that has seemingly failed them. But with the motion hearing on the Kent murder case evidence at hand, they’re each faced with a choice: to let things go, or take matters into their own hands.