Stripped-down, visceral, and relentlessly bleak, Metalhead (Season 4, Episode 5) is one of Black Mirror’s most polarizing episodes. Directed by David Slade and shot entirely in black and white, this installment abandons the series’ typical psychological-techno-thriller format for a primal tale of survival. It’s a 41-minute adrenaline spike, a high-concept horror that feels less like a distant sci-fi warning and more like a terrifyingly plausible immediate future.
A Detailed Recap, Analysis, and Review of the Haunting Episode

The episode throws us directly into a post-apocalyptic landscape across the Scottish Moors. We follow three survivors, Bella (a phenomenal Maxine Peake), Anthony, and Clarke, on a mission. Their dialogue is sparse, but we gather they are on a supply run for someone named Jack, who is dying. Their target is a specific item in a warehouse.

Upon reaching the derelict warehouse, Clarke works on hot-wiring a van for their escape while Bella and Anthony search for the box they came for. They find it, but in retrieving it, they awaken a dormant “dog”, a quadrupedal, insect-like robot that is less a machine and more a single-minded killing engine.

The dog immediately springs to action, firing a barrage of shrapnel that embeds tracking devices into Bella and Anthony’s skin. Before they can react, the dog executes the injured Anthony with a blast to the head. Bella flees, grabbing her walkie-talkie and car keys, as the mechanical beast begins its remorseless pursuit.
What follows is a harrowing, extended chase sequence. The dog, damaged but functional, pursues Bella across the desolate terrain. It showcases a terrifying arsenal of abilities: it can track her, recharge via sunlight, manipulate its environment, and even operate other machinery. Bella, meanwhile, proves to be a tenacious and resourceful survivor. She communicates a final, heartbreaking message to her loved ones via the walkie-talkie, digs a tracker out of her own leg with a knife, and uses her wits to try and outsmart the machine, at one point draining its battery by repeatedly throwing sweets at it to force it to power on.
Her fight for survival leads her to an abandoned, modern home. After a tense standoff, she manages to momentarily disable the dog by dousing its optical sensor with paint. But her victory is short-lived. In its final moments, the dog fires one last shrapnel bomb. Bella, cornered in a car, realizes with dawning horror that the shrapnel has peppered her face and, crucially, her jugular vein. She knows removing the trackers is impossible and that more dogs are on their way.

Character Analysis
Bella (Maxine Peake): With minimal dialogue, Peake delivers a masterclass in physical performance. Bella is not a hardened soldier, but an ordinary person pushed to extraordinary limits. Her resilience, intelligence, and desperation are palpable in every scene. She is the embodiment of the human will to survive, driven not just by self-preservation, but by a profound sense of love and duty to others. Her mission’s objective reveals the deep well of humanity she is fighting to protect.
The Dog: The antagonist is a masterpiece of minimalist horror design. It is not an evil entity, but a creature of pure, pre-programmed logic. Devoid of emotion, malice, or nuance, its only function is to seek and destroy. It is the ultimate predator for the technological age, a chilling symbol of efficiency untethered from morality. Its relentless, unthinking nature is what makes it so terrifying.
Ending Explained
The final, gut-punching reveal of “Metalhead” is its most discussed and devastating element. As Bella looks at her own doomed reflection and raises a knife to her throat, the camera pans out. We see the aftermath of her struggle, and then, for the first time, the contents of the box she and her companions risked everything for.
Spilling from the box is not medicine, weapons, or vital supplies. It’s a single, white teddy bear. The entire deadly mission, the sacrifice of three lives, was an attempt to bring a small measure of comfort to a dying child. This final shot re-contextualizes the entire narrative. The fight was not for survival in the grand sense, but for a final, fleeting act of human empathy in a world devoid of it. Bella’s ultimate suicide is not just an escape from the dogs, but a final act of protection, ensuring the trackers on her body do not lead the machines back to her community and the child, Jack.
Analysis
“Metalhead” is a raw exploration of several core themes:
- Survival Horror: At its heart, this is a pure survival story, stripping away complex backstories to focus on the primal cat-and-mouse game between woman and machine.
- The Terror of Autonomous Technology: The episode is a stark warning about the potential dangers of creating autonomous weapons. Once a system is designed to kill without human intervention, what happens when its parameters are lost or it falls into disrepair? The dog is the logical endpoint of drone warfare and automated security.
- Humanity in a Hopeless World: The final reveal is the episode’s most profound statement. It argues that what makes us human is not our ability to conquer our environment, but our capacity for “illogical” acts of compassion. In a world of cold, metal logic, risking everything for a teddy bear is a defiant, heartbreakingly human act.
Black Mirror Metalhead Real Life Story
The connection between “Metalhead” and the real world is immediate and unsettling. The design and movement of the “dogs” were directly inspired by the viral videos of robotics company Boston Dynamics. Their creations, such as “Spot” and “BigDog,” are famous for their uncanny animal-like agility, balance, and ability to navigate complex terrain.
While Boston Dynamics’ robots are designed for purposes like industrial inspection and research, “Metalhead” creator Charlie Brooker simply asked the question: “What if you put a gun on it?” The episode serves as a powerful speculative look at how this remarkable technology could be weaponized, creating an autonomous hunter-killer that is terrifyingly close to our current technological capabilities.
Review
“Metalhead” has been a source of intense debate among Black Mirror fans and critics, which is reflected in its online scores.
- IMDb: The episode holds a rating of 6.6/10, which is lower than many of the series’ more celebrated installments. User reviews are often split. Detractors find it overly simplistic, lacking the intricate narrative twists and deep social commentary of other episodes. They argue it’s a straightforward chase sequence with a weak payoff. Supporters, however, praise it for its raw intensity, masterful direction, and nerve-shredding tension. Many consider it one of the most genuinely terrifying episodes, with its stark black-and-white cinematography adding to the bleak, hopeless atmosphere.
- Rotten Tomatoes: While individual episode scores aren’t always prominent, “Metalhead” contributed to Season 4’s overall 85% “Certified Fresh” rating. Critics largely praised Maxine Peake’s performance and David Slade’s stylish direction. They acknowledged its departure from the standard Black Mirror formula, with some calling it a “gimmick-free” and visceral piece of genre fiction. Like the IMDb audience, critics were divided on its ultimate success, but it is consistently recognized as a visually striking and unforgettable piece of television.
Final Verdict
In a television landscape often saturated with cynicism, “Hang the DJ” stands as a beacon of hope. It reminds us that while technology may shape our lives in profound ways, the fundamental human desire for connection and the rebellious spirit of love can, and perhaps should, ultimately prevail. It suggests that sometimes, the most revolutionary act is to simply trust your heart and, as the song suggests, “hang the DJ.”