Nearly a year has passed and Bosch, still grinding on the Daisy Clayton murder case, gets called to the Lake Hollywood Overlook to investigate the murder of medical physicist Stanley Kent. Edgar runs a sting on his dirty cops, Maddie starts a new internship, and Chief Irvin Irving jumpstarts his mayoral campaign.

A detail from Kent’s widow Alicia leads Bosch and the FBI to suspect a group of Sovereign citizens in connection to the stolen radioactive cesium and Overlook murder, but they clash over tactics, causing a deadly standoff. Maddie finds a puzzling omission in a trial transcript and Detective Vega is uncomfortable to learn she’s Billets’ "teacher’s pet."

When cops discover the body of a homeless man covered in radiation burns, the hunt for the cesium intensifies but Bosch and Edgar wonder if their assumptions about the crime have been wrong all along. Maddie’s discovery earns Chandler’s praise. DEA Agent Charlie Hovan discloses his connection to Jamaican drug dealers with possible ties to Edgar’s dirty cops.

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.

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.

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.

Robertson and Bennett follow the hitman’s trail to Las Vegas, hoping to find a connection to Fowkkes’ other clients. When Billets performs a security evaluation at a local jewelry shop, she gets more than she bargained for. Irving gives Bosch an order, causing Bosch to lose faith in the system he has defended his entire career.

As Billets posts the Hollywood homicide detectives’ new assignments, Bosch puts a plan in motion to arrest Mickey Peña, leading to some severe consequences. Billets makes an impression and Maddie makes a decision about her future.