8.5/101,544 votes#1 - Ask the Dust
Season 4 Episode 1 - Aired 4/12/2018
Three months after discovering a startling new lead, Det. Harry Bosch is still pursuing the truth behind his mother's cold case. A murder of a high-profile attorney puts the city on edge so Chief Irvin Irving creates a Task Force with Bosch in charge. Bosch must contend with two former adversaries.
Director: Aaron Lipstadt
Writer: Daniel Pyne, John Mankiewicz
8.4/101,421 votes#2 - Dreams of Bunker Hill
Season 4 Episode 2 - Aired 4/12/2018
Bosch pulls out all the stops to try and get to the bottom of the Elias murder as quickly as possible while keeping the IA investigators on his Task Force in the dark. Eleanor Wish is back in the game with the Feds, and Det. Jerry Edgar preps for his first day back on the job.
Director: Aaron Lipstadt
Writer: Daniel Pyne, John Mankiewicz
8.4/101,388 votes#3 - Devil in the House
Season 4 Episode 3 - Aired 4/12/2018
As the Task Force tries to clear the growing number of suspects, they discover a potentially explosive false alibi. Det. Santiago Robertson must put his personal relationships aside for the sake of the case. Edgar struggles rebalancing work and family. Bosch has an unlikely late night visitor.
Director: Alex Zakrzewski
Writer: Tom Bernardo
9.0/101,453 votes#4 - Past Lives
Season 4 Episode 4 - Aired 4/12/2018
Det. Francis Sheehan comes clean to Bosch, Robertson suspects a leak in the investigation, and Edgar joins the Task Force. Social unrest surrounding the Elias murder grows and Irving is pressured to intervene. Eleanor asks Bosch for parenting advice and confesses the truth about her marriage to Reggie Woo.
Director: Tim Hunter
Writer: Shaz Bennett, Elle Johnson
8.5/101,338 votes#5 - The Coping
Season 4 Episode 5 - Aired 4/12/2018
Bosch struggles to manage all the things he's lost and to keep the darkness at bay, from himself, and from Maddie. The Task Force bears down on two suspects. Acting Captain Grace Billets gets tangled in station politics and petty opposition, no longer everyone's best friend.
Director: Alex Zakrzewski
Writer: Jeffrey Alan Fiskin
8.6/101,329 votes#6 - The Wine of Youth
Season 4 Episode 6 - Aired 4/12/2018
The search for Sheehan intensifies, as pressure mounts to solve the Elias murder. The Task Force waits for ballistics to confirm their suspicions. Edgar and Bosch pursue an unofficial 'side project' in the San Gabriel Valley. Billets and Dets. Crate and Barrel respond to a suspicious hit and run in Hollywood.
Director: Zetna Fuentes
Writer: John Mankiewicz
8.5/101,306 votes#7 - Missed Connections
Season 4 Episode 7 - Aired 4/12/2018
Two off-duty patrol officers cause Billets more trouble than she needs while the protests heat up outside Hollywood Station. With a suspect in custody, the Task Force begins to wrap up the case, but Bosch remains unconvinced. Irving learns he's being played and Honey Chandler makes a surprising discovery.
Director: Daisy von Scherler Mayer
Writer: Jeffrey Alan Fiskin
8.8/101,357 votes#8 - Dark Sky
Season 4 Episode 8 - Aired 4/12/2018
Hollywood Station goes on TAC Alert. Irving plots his next moves. With new evidence, the Elias case takes an unexpected turn. Maddie tries to connect with her past. Bosch harbors doubts about his Task Force and interviews a new suspect.
Director: Ernest R. Dickerson
Writer: Elle Johnson
9.0/101,413 votes#9 - Rojo Profundo
Season 4 Episode 9 - Aired 4/12/2018
The protest looming, Billets strikes a deal with the activists. Irving realizes that old friends are new enemies. Crate and Barrel solve the case of their careers. As the Task Force scrambles to salvage their investigation, Bosch finds himself in the depths of underground Los Angeles.
Director: Neema Barnette
Writer: Michael Connelly
9.2/101,715 votes#10 - Book of the Unclaimed Dead
Season 4 Episode 10 - Aired 4/12/2018
Bosch and Sgt. Amy Snyder uncover a key piece of evidence that could compromise the entire Elias investigation. Edgar and Robertson are rocked by personal disappointment. Irving exposes his enemies. Bosch stalks the suspected Elias killer on his own, and comes face to face with his past.
Director: Ernest R. Dickerson
Writer: Daniel Pyne
The Best Episodes of Bosch Season 4
Every episode of Bosch Season 4 ranked from best to worst. Discover the Best Episodes of Bosch Season 4!
Based on Michael Connelly's best-selling novels, these are the stories of relentless LAPD homicide Detective Harry Bosch who pursues justice at all costs. But behind...
Genres:MysteryDramaCrime
Network:Prime Video
Season 4 Ratings Summary
"Ask the Dust" is the best rated episode of "Bosch" season 4. It scored 8.5/10 based on 1544 votes. Directed by Aaron Lipstadt and written by Daniel Pyne, John Mankiewicz, it aired on 4/12/2018. This episode is rated 0.1 points higher than the second-best, "Dreams of Bunker Hill".