9.7/1039 votes#1 - return 0
Season 5 Episode 13 - Aired 6/21/2016
Finch, Reese, Fusco and Shaw embark on one last mission to prevent Samaritan from destroying The Machine and cementing its hold over mankind.
Director: Chris Fisher
Writer: Jonathan Nolan
9.2/1024 votes#2 - Firewall
Season 1 Episode 23 - Aired 5/17/2012
As the clock ticks down, Reese winds up trapped with his POI in the most heavily surveilled part of the city, forced to rely on the help of Finch, Carter and Fusco to fend off the FBI, corrupt cops and a slew of old foes.
Director: Richard J. Lewis
Writer: Jonathan Nolan
9.2/1035 votes#3 - The Devil's Share
Season 3 Episode 10 - Aired 11/26/2013
As the POI team seeks justice for Carter’s murder, Finch realizes one of his team members may go one step too far in order to end the war with HR. Also, The Machine gives out the number for NYPD Officer Patrick Simmons, one of the crime organization’s key players.
Director: Chris Fisher
Writer: Jonathan Nolan
9.1/10177 votes#4 - The Bicameral Mind
Season 1 Episode 10 - Aired 12/4/2016
Ford unveils his vision for a bold new narrative. Enlightened by Bernard and the Man in Black, Dolores comes to terms with who she is. Maeve sets her liberation plan in motion as Westworld faces a major upheaval.
Director: Jonathan Nolan
Writer: Jonathan Nolan
8.9/1027 votes#5 - God Mode
Season 2 Episode 22 - Aired 5/9/2013
Finch and Reese team up with unexpected allies as they race to fix the machine; as Detective Carter tries to apprehend Cal Beecher's murderer, she finds herself up against HR -- a criminal organization.
Director: Richard J. Lewis
Writer: Jonathan Nolan
8.9/10148 votes#6 - Trompe L'Oeil
Season 1 Episode 7 - Aired 11/13/2016
With Theresa's assistance, Charlotte Hale aims to expose dangerous flaws in Ford's creations. William, Dolores and Lawrence journey into treacherous terrain. Maeve delivers an ultimatum to Lutz and Sylvester. With his back to the wall, Bernard considers his next move.
Director: Fred Toye
Writer: Jonathan Nolan
8.6/1024 votes#7 - Relevance
Season 2 Episode 16 - Aired 2/21/2013
A lethal government operative who tracks and stops terrorist threats before they occur finds herself on the run – and the new focus of Reese and Finch's attention. However, their pursuit proves to be their most formidable when they discover that her remarkable skill set equals their own.
Director: Jonathan Nolan
Writer: Jonathan Nolan
8.4/1024 votes#8 - The Contingency
Season 2 Episode 1 - Aired 9/27/2012
With Finch missing – kidnapped by his hacker nemesis, Root, Reese enlists Detectives Carter and Fusco to get his friend back, Meanwhile, The Machine never sleeps, disseminating a new number to Reese.
Director: Richard J. Lewis
Writer: Jonathan Nolan
8.4/10139 votes#9 - The Adversary
Season 1 Episode 6 - Aired 11/6/2016
Elsie discovers a possible source of sabotage, while Bernard searches for clues to anomalies in a sector thought to be abandoned. Theresa questions Ford's leadership while Lee encounters a new arrival at Westworld. The Man in Black and Teddy run afoul of a Union garrison in their attempt to cross a border.
Director: Fred Toye
Writer: Jonathan Nolan
8.3/10106 votes#10 - The Riddle of the Sphinx
Season 2 Episode 4 - Aired 5/13/2018
Is this now? If you're looking forward, you're looking in the wrong direction. The Man in Black offers to lead the way and Delos gets a visitor. Who is James Delos? Or, perhaps more accurately, what is James Delos, the figure at the center of Delos' secret project.
Director: Lisa Joy
Writer: Jonathan Nolan
8.1/10172 votes#11 - Chestnut
Season 1 Episode 2 - Aired 10/9/2016
A pair of guests, first-timer William and repeat visitor Logan, arrive at Westworld with different expectations and agendas. Bernard and Quality Assurance head Theresa Cullen debate whether a recent host anomaly is contagious. Meanwhile, behavior engineer Elsie Hughes tweaks the emotions of Maeve, a madam in Sweetwater's brothel, in order to avoid a recall. Cocky programmer Lee Sizemore pitches his latest narrative to the team, but Dr. Ford has other ideas. The Man in Black conscripts a condemned man, Lawrence, to help him uncover Westworld's deepest secrets.
Director: Richard J. Lewis
Writer: Jonathan Nolan
8.1/10149 votes#12 - Dissonance Theory
Season 1 Episode 4 - Aired 10/23/2016
Dolores joins William and Logan on a bounty hunt in the badlands. The Man in Black, with Lawrence in tow, finds a critical clue in his search to unlock the maze. Dr. Ford and Theresa discuss the future of the park. Maeve is troubled by a recurring vision.
Director: Vincenzo Natali
Writer: Jonathan Nolan
7.9/1094 votes#13 - The Passenger
Season 2 Episode 10 - Aired 6/24/2018
Hosts and humans converge at the Valley Beyond. This is the end. We will win.
Director: Fred Toye
Writer: Jonathan Nolan
7.8/1027 votes#14 - Ghosts
Season 1 Episode 2 - Aired 9/29/2011
Reese and Finch question the machine's reliability when they are asked to investigate a teenager who was killed years earlier; Finch remembers the origin of the machine.
Director: Richard J. Lewis
Writer: Jonathan Nolan
7.7/10102 votes#15 - Reunion
Season 2 Episode 2 - Aired 4/29/2018
Why don't we start at the beginning? Dolores remembers she's been to the outside world, William makes a bold business venture, and Maeve begins her quest for her daughter. Someone's always watching.
Director: Vincenzo Natali
Writer: Jonathan Nolan
7.6/1031 votes#16 - Pilot
Season 1 Episode 1 - Aired 9/22/2011
When the social security number of a young prosecutor comes up, Reese and Finch work together to figure out if their person of interest is the victim or perpetrator.
Director: David Semel
Writer: Jonathan Nolan
7.5/1081 votes#17 - Parce Domine
Season 3 Episode 1 - Aired 3/15/2020
Dolores sets out to find the architect of the Rehoboam; Bernard tries to blend in; Ex-soldier Caleb tries to find his way in neo-Los Angeles.
Director: Jonathan Nolan
Writer: Jonathan Nolan
7.4/1064 votes#18 - Genre
Season 3 Episode 5 - Aired 4/12/2020
Serac's past is revealed; Dolores pressures Liam for access to Rehoboam; Caleb is dosed with an unusual party drug.
Director: Anna Foerster
Writer: Jonathan Nolan
7.2/1068 votes#19 - Crisis Theory
Season 3 Episode 8 - Aired 5/3/2020
Dolores true intentions are revealed; Bernard confronts a ghost from his past; Maeve is conflicted; Serac's voice is dominant; Caleb's role is revealed; and William faces an unexpected villain.
Director: Jennifer Getzinger
Writer: Jonathan Nolan
6.9/1030 votes#20 - Que Será, Será
Season 4 Episode 8 - Aired 8/14/2022
Like what I've done with the place? (I just cranked it to expert level.).
Director: Richard J. Lewis
Writer: Jonathan Nolan
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Jonathan Nolan Ratings Summary
"return 0" is the best rated episode written by Jonathan Nolan. It scored 9.667/10 based on 39 votes. It was directed by Chris Fisher. It aired on 6/21/2016 and is rated 0.5 points higher than their second-best episode, "Firewall".