"Stripe" Koinange (Malachi Kirby) and "Hunter" Raiman (Madeline Brewer) are squadmates in a military that hunts roaches—pale, snarling, humanoid monsters with sharp teeth. Each soldier has a neural implant called MASS that provides data via augmented reality. Stripe and Hunter's squad searches a farmhouse while squad leader Medina (Sarah Snook) interrogates the owner, a devout Christian (Francis Magee). Stripe discovers a nest of roaches, one of whom points an LED device at Stripe; unfazed, he shoots one roach dead and stabs another to death. Medina arrests the owner and the squad burns down the farmhouse.

Stripe is rewarded with an erotic dream following his kills, but his MASS glitches during it. After further malfunctions the following day, Stripe has his MASS tested and consults a psychologist, Arquette (Michael Kelly), but neither visit reveals any problems.

The next day, Medina, Stripe and Hunter arrive at an abandoned housing complex. After a roach-sniper suddenly kills Medina, the other two soldiers enter the building as the sniper shoots at them. Stripe encounters a woman and urges her to flee, but Hunter shoots her dead. Stripe finds another woman (Ariane Labed) with her child, and Hunter prepares to shoot them. Stripe intervenes and wrestles Hunter, knocking her unconscious as she shoots him in the stomach. Stripe gets up and escapes with the mother and son.

They reach a cave in the woods where the woman, named Catarina, explains that the MASS implant alters soldiers' senses to show people of her ethnic group as inhuman "roaches". They are victims of a genocide justified by the military as genetic cleansing. While laypeople see the group as they are, they treat them as inferior due to propaganda. Hunter arrives and kills Catarina and her son Alec, then knocks Stripe unconscious.

Stripe awakens in a cell, where Arquette apologizes for his MASS glitch, which was caused by the LED device. Arquette reveals that MASS alters soldiers' senses, enabling them to kill without hesitation or remorse, and that Stripe consented to this when he enlisted before having his memory wiped. Stripe faces the choice of allowing his MASS and memory to be reset or opting for imprisonment, where he will be forced to rewatch the video from the farmhouse throughout his sentence. Arquette compels Stripe to rewatch the sensory feed of his farmhouse raid, where he now sees the reality of himself gruesomely killing people.

In the final scene, Stripe, now a decorated officer, approaches the house from his erotic dreams. He has tears streaming down his face as he smiles. The house is then shown to be dilapidated and empty.

Whilst series one and two of Black Mirror were shown on Channel 4 in the UK, in September 2015 Netflix commissioned the series for 12 episodes (split into two series of six episodes).^[2] In March 2016, Netflix outbid Channel 4 for the rights to distributing the third series, with a bid of $40 million.^[3] Due to its move to Netflix, the show had a larger budget than in previous series.^[4] "Men Against Fire" is the fifth episode of the third series;^[5] all six episodes in this series were released on Netflix simultaneously on 21 October 2016. As Black Mirror is an anthology series, each episode is standalone.^[6]

External videos
"Black Mirror – Season 3" The trailer for series three of Black Mirror

The titles of the six episodes that make up series 3 were announced in July 2016, along with the release date.^[7] A trailer for series three, featuring an amalgamation of clips and sound bites from the six episodes, was released by Netflix on 7 October 2016.^[8]

The episode was written by series creator Charlie Brooker. Originally called "Inbound", the first draft was inspired by the 2010 documentary The War You Don't See, which featured lengthy stories from victims of the Iraq War. In "Inbound", an attack on Britain appeared to be from an alien force, but was later revealed to be an invasion by Norway. It was the second script pitched in 2010 for the first series of Black Mirror, but it was rejected at the time. Influenced by Men Against Fire: The Problem of Battle Command by S.L.A. Marshall and On Killing by Dave Grossman, the episode's focus gradually shifted to a war where combat is censored to soldiers, and it was renamed "Men Against Fire".^[1]

The title of the episode comes from Brigadier General S.L.A. Marshall's book Men Against Fire: The Problem of Battle Command (1947), wherein Marshall claims that during World War II, over 70% of soldiers did not fire their rifles, even under immediate threat, and most of those who fired aimed above the enemy's head.^[9] A similar statement is made during one of Arquette's dialogues in the episode.^[10] TheWrap later reported that there have been suggestions that Marshall's claim is incorrect.^[11] For research, Brooker also read Dave Grossman's book On Killing, which is about the psychology of killing and based on Marshall's work.^[12][10] He initially wrote Arquette as more "stuffy", though his character was always intended to be sympathetic. He is a father figure to some of the soldiers, and thinks his actions are good.^[1]

Jakob Verbruggen directed the episode.^[1] Malachi Kirby, a fan of the programme, was cast as Stripe. Kirby played the character as naive, vulnerable and with a sense of doubt, rather than as an alpha male.^[1] Michael Kelly plays psychologist Arquette, having previously worked with Verbruggen on the American political thriller House of Cards. Kelly believed that Arquette and Doug Stamper—his character on House of Cards—had a commonality of "true convictions in their actions". He suggested that Arquette thinks his actions help soldiers cope with posttraumatic stress disorder.^[13]

The episode was filmed in 18 days. He was inspired by the "fearless high energy" of the 1997 science fiction film Starship Troopers. Though intended to look "gritty" and foreign, perhaps in an Eastern European setting, the production was constrained to the United Kingdom for economy of time and budget. Two locations near London were used for filming: the first was a disused army barracks, and the second was a set constructed in the forest for use as the village setting. A farmhouse was used as the "roach nest".^[1]

As the roaches were to be shown close up to the camera, their design was considered in detail. Their clothing was ill-fitted, to look like it had been taken from villages. After looking at the effects of skin diseases and mutations, production designer Joel Collins conceived of a design in which their brains and features had swelling, as if they had hydrocephalus. Kristyan Mallett worked on prosthetics, and four designs were tested on camera. The actors required hours in make-up for prosthetics. Adult actors were given black contact lenses, while the eyes of a young boy featured were altered using visual effects in post-production. As the story only made sense if the fight scene in the farmhouse was shown from a soldier's point of view, the scene was shot in a frantic style, and roaches appeared more human-like when viewed from behind.^[1]

Body doubles were used for the effect of Stripe seeing three copies of his fiancée as his MASS malfunctions during a dream.^[1] Kelly's two scenes were filmed across three days, the latter being a lengthy scene where Stripe and Arquette are alone in a cell together. Kelly spent the second day thoroughly rehearsing this scene repeatedly, and it was filmed on the third day.^[13] The room was chosen to be "bright, uncomfortable and extremely claustrophobic", and the two characters are never shown in the same frame; as Stripe learns information, the room feels like it closes in on him.^[1]

Both Kelly and executive producer Annabel Jones compared the episode to what they saw as rising xenophobia in Europe and America, exemplified by media descriptions of refugees as "swarms" of people, the Donald Trump 2016 presidential campaign and Brexit coverage.^[13][15] These comparisons were also made by critics:^[16][17] Matt Patches of Thrillist summarised the episode as a "catch-all metaphor for how we deal with the disenfranchised members of our global society",^[18] whilst Christian Holub of Entertainment Weekly described it as a "thought-provoking parable about the military's role in genocide".^[14] Tristram Fane Saunders of The Telegraph believed compassion to be the message of the episode.^[16]

The episode was described by reviewers as analogous to Nazi Germany and the Holocaust.^[17][14][19] Sophie Gilbert of The Atlantic commented that the episode's depiction of eugenics links to "prejudices still rife among humankind" such as "institutionalized racism, tribalism, and fear of refugees".^[20] Alissa Wilkinson of Vox found that the episode was about the past rather than the future, as it explores crimes against humanity from 20th century history.^[19] Andrew Liptak of The Verge wrote that in the episode, the "government perpetuated a holocaust by literally demonizing its enemies".^[21] Several reviewers noted that the villagers in the episode do not have the MASS system, so they see the genocide victims as they are, but still consider them "roaches".^[17][19][20]

Verbruggen said that the ending, in which Stripe appears to come home to a beautiful house and fiancée, but then the house is seen to be empty and derelict, can be interpreted in different ways by the audience. Kirby suggested an interpretation where Stripe chooses to keep his memories, but enable the MASS system, so he knows his vision is a lie.^[1] Kelly opined that Stripe had his memories wiped and that the house being empty is seen only by the viewers, not by Stripe.^[13] Verbruggen questions whether any of the episode's events are real. Brooker called the ending "oblique", saying that he did not have an answer to what the ending meant. The ending was originally conceived of as a homecoming parade for the returning soldiers, which is revealed to not be real.^[1]

"Men Against Fire" has been compared to other works of science fiction. Alex Mullane of Digital Spy and Charles Bramesco of Vulture made comparisons with the 1997 satirical film Starship Troopers, for the soldiers' "macho talk of ending the Roach menace" and the work's "thinly veiled commentary on the culture of virulence that warring nations have to cultivate".^[17][22] The episode was also described as the episode of Black Mirror most similar to The Twilight Zone, the anthology series which inspired it, for its focus on one simple parable.^[16][14] Liptak compared the episode's narrative of a soldier realising the damage he is inflicting and going through a personal crisis to the military-related works "Enemy Mine", a 1979 novella, and Captain America: The Winter Soldier, a 2014 film.^[21]

A Den of Geek article compares several real-world technologies to features of the MASS tool. Applied Research Associates' product ARC4 is an augmented reality headset designed for soldiers, whilst Waverly Labs has an app and earpiece translation tool designed for conversation, and a product in development claims it will be able to induce lucid dreaming.^[23]

On Rotten Tomatoes, the episode received a rating of 59%, based on 22 reviews, with a critics' consensus approving of "high production and a disquieting conclusion" but disapproving of "a blunt central theme that many viewers may find too on the nose to sustain an episode".^[5] The episode received an A− rating by Zack Handlen of The A.V. Club,^[24] a B− grade from Christian Holub of Entertainment Weekly^[14] and a score of three out of five stars in Tristram Fane Saunder's review for The Telegraph.^[16] Roxanne Sancto of Paste praised the episode as "incredibly fucking relevant"^[25] and Gilbert said it was "one of the better episodes of the series",^[20] but Matt Fowler of IGN wrote that it was the "least engaging emotionally" in the third series^[26] and Adam Chitwood of Collider criticised it as "heavy-handed with its social commentary".^[27] Both Liptak and Bramesco believed the concepts to be interesting, but executed poorly.^[21][22] However, Handlen praised the episode's pacing.^[24]

The plot twist was widely considered to be predictable,^[22][24][27] leading Wilkinson and Mullane to say that the episode was not shocking^[17][19] and Wilkinson to say that it lacked tension.^[19] However, Gilbert described the twist as "terrific" and "unexpected", praising its plausibility.^[20] Handlen described the ending of the episode as "slightly unclear", albeit symbolically "effective".^[24] Saunders enjoyed the scene with Stripe and Arquette alone in a cell, commenting that them "discussing ideas of right and wrong" was "by far the finest part of the episode".^[16]

Kirby and Kelly were both praised for their performances as Stripe and Arquette, respectively.^[17][20] Handlen noted that Stripe is a passive character, and opined that Kirby did a good job in keeping "our interest and our sympathies" throughout the episode.^[24] Bramesco believed that Kirby's performance introduced "a grounded component worthy of the audience's emotional investment" to the episode.^[22] Gilbert praised that Kelly "imbues every performance with extraordinary menace".^[20] Sancto praised the scene in which Stripe and Catarina—the mother labelled as a "roach"—converse.^[25]

The episode was criticised for overreliance on cliches, particularly those relating to the military and dystopic science fiction.^[21][14] Saunders wrote that the episode's portrayal of the military was "competent and familiar, rather than fresh or exciting".^[16] Bramesco said the episode was too much of a "simplistic metaphor" and "doesn't offer anything new".^[22] Mullane wrote that there are "a few shots where the boom mic slips into frame, which is an uncharacteristically sloppy distraction".^[17] Bramesco opined that the episode was "gratuitously violent".^[22]

For their work on this episode, Kristyan Mallett and Tanya Lodge were nominated for a 2017 Make-Up Artists and Hair Stylists Guild award, in the category of Best Special Makeup Effects – Television Mini-Series or Motion Picture Made for Television.^[28]

"Men Against Fire" appeared on many critics' rankings of the 23 instalments in the Black Mirror series, from best to worst.

IndieWire authors ranked the 22 Black Mirror instalments excluding Bandersnatch by quality, giving "Men Against Fire" a position of 18th.^[37] Additionally, Proma Khosla of Mashable ranked the same instalments by tone, concluding that "Men Against Fire" was the eighth most bleak.^[38] Eric Anthony Glover of Entertainment Tonight ranked the episode 15th out of the 19 episodes from series one to four.^[39]

Other critics ranked the 13 episodes in Black Mirror's first three series.

• 6th – Andrew Wallenstein, Variety^[40]
• 11th – Adam David, CNN Philippines^[41]
• 12th – Jacob Hall, /Film^[42]
• 12th – Mat Elfring, GameSpot^[43]

Some critics ranked the six episodes from series three of Black Mirror in order of quality.

• 6th – Jacob Stolworthy and Christopher Hooton, The Independent^[44]
• 6th – Liam Hoofe, Flickering Myth^[45]

• "Hearts and Minds" – a 1998 episode of the anthology series The Outer Limits with a similar premise
• The 5th Wave (film) – science-fiction film where people are also manipulated with implants to kill other people