Directed by

George Lucas
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Read the complete plot summary and ending explained for Electronic Labyrinth: THX 1138 4EB (1967). From turning points to emotional moments, uncover what really happened and why it matters.
In a future governed by a tightly controlled, technologically driven regime, the film unfolds on a dated May 14, 2187 and leans into the tension between personal longing and an all-seeing state. In a world where daily life is tracked and regulated, YYO 7117 is questioned about her feelings for her mate THX 1138, described as a sexually conceived eros body. Through clipped radio messages, computer operators monitor THX 1138 as he is spotted sprinting through a corridor, illustrating how intimate life is surveilled and managed.
When confronted, THX 1138 refuses a direct order to stop and escapes toward the lower levels, triggering a response from the operators who unleash a painful mind-block. The struggle between control and autonomy intensifies as the mind-block proves difficult to maintain, and THX 1138 seems to resist its effects long enough to keep moving. The pursuit is intensified by an enhanced perfect body drawn into the chase, its presence a stark reminder of the regime’s relentless push to suppress individuality and desire.
The chase leads through the labyrinthine lower levels, where the couple finally faces the oppressive proxy of the system. They confront and kill the perfect body, a moment that shocks the operators and signals a crack in the machinery of surveillance. THX 1138 reaches a door, pries it open, and escapes the structure, breaking free from the claustrophobic grip of the installation. As THX 1138 runs into the countryside toward the setting sun, the government feeds YYO 7117 a lie—that THX has “destroyed themself”—and offers instructions on how to request a new mate, revealing the cold mechanism by which the state maintains control over reproduction and companionship.
The USC program guide accompanying the film describes it as a “nightmare impression of a world in which a man is trying to escape a computerized world which constantly tracks his movements.”
Follow the complete movie timeline of Electronic Labyrinth: THX 1138 4EB (1967) with every major event in chronological order. Great for understanding complex plots and story progression.
World setting and date: May 14, 2187
The film establishes a highly administered, surveillance-driven society and marks the date May 14, 2187 as the setting. Citizens live under constant monitoring and the regime tightly controls reproduction and personal choice. THX 1138 and their mate THX 1138 4EB are introduced as products of this system, highlighting the cold machinery behind human life.
YYO 7117 questioned about love with THX 1138 4EB
Under interrogation, YYO 7117 denies being in love with THX 1138 4EB, illustrating the regime's denial of genuine emotion. The dialogue underscores the concept of an 'eros body' created through reproductive programming. The scene emphasizes how intimate relationships are stripped of autonomy in this world.
Operators monitor THX 1138 via radio exchanges
A team of computer operators monitor THX 1138 and exchange radio messages about his movements. They identify him on surveillance feeds and coordinate a response to potential deviation. The scene shows the cold efficiency of the control systems keeping people in line.
THX 1138 spotted on cameras in a corridor
THX 1138 is captured on camera running through a corridor, refusing a command to stop. The pursuit reveals the limits of the infrastructure's ability to contain a determined individual. It underscores the human drive to resist the framework of control.
THX 1138 escapes to the lower levels
THX 1138 refuses to halt and slips away by taking a conveyance into the lower levels. The escape marks a turning point as he leaves the monitored spaces behind. The chase shifts from surveillance to a more intimate, claustrophobic pursuit through the undercity.
Mind-block is deployed and defeated
Operators deploy an agonizing mind-block on THX 1138, attempting to crush his autonomy. THX 1138 fights against the neurological constraint and manages to defeat it. The moment reveals a spark of resistance within the system’s carefully engineered body.
Enhanced 'perfect body' pursues through the lower levels
An enhanced 'perfect body' is released to pursue THX 1138 and THX 1138 4EB through the lower levels. The pursuit intensifies as the system deploys a more formidable instrument of control. The chase through the dim corridors emphasizes the regime’s reach and ruthlessness.
Confrontation leads to the killing of the perfect body
The couple confronts the perfect body and kills it, a shocking reversal that astonishes the operators watching from above. The act demonstrates that resistance can disrupt even the most advanced enforcers. This moment raises questions about the regime’s invincibility and the potential for defiance.
THX reaches the exterior door and escapes
THX 1138 reaches a door, pries it open, and escapes the structure. The escape feels almost miraculous against the oppressive architecture. The outside world appears as a beacon of possible freedom beyond the regime’s walls.
Escape into the countryside toward the sunset
THX 1138 runs through the countryside toward the sunset, leaving the city’s surveillance behind. The scene emphasizes a shift from controlled space to open terrain, symbolizing the fragile line between safety and freedom. The final stretch suggests that complete escape remains uncertain but possible.
Government deception: THX destroyed themselves and mates are reissued
The government lies to YYO 7117, claiming THX 1138 destroyed themselves. Behind the lie lies a policy of replacing mates, maintaining population control while masking the truth. The deception reveals the cold, systematic nature of the regime’s control over intimate life.
Ending impression: a nightmare of escaping a computerized world
The film closes with a stark note that the world is a nightmare of constant tracking and control. THX 1138’s escape challenges the illusion of total domination and highlights the enduring human longing for freedom. The ending leaves the audience with a sense of ambiguity about the regime’s ultimate fate.
Explore all characters from Electronic Labyrinth: THX 1138 4EB (1967). Get detailed profiles with their roles, arcs, and key relationships explained.
THX 1138 (Dan Natchsheim)
The film's central figure, a man navigating a society where personal desires are policed by technology. He defies orders, seeks escape from a confining system, and drives the action as he challenges the regime. His perseverance and resourcefulness highlight the tension between individuality and control.
YYO 7117 (Joy Carmichael)
THX's mate within a regime that regulates intimate bonds. Under interrogation, she denies being in love with THX 1138 4EB, reflecting the era's repression. Her loyalty to the system contrasts with a personal hunger for connection, adding emotional stakes to the pursuit.
9021 (Ralph Stell)
A member of the surveillance apparatus within the totalitarian system. He observes and enforces the regime's rules, illustrating the impersonal, bureaucratic nature of control in the story's world.
Learn where and when Electronic Labyrinth: THX 1138 4EB (1967) takes place. Explore the film’s settings, era, and how they shape the narrative.
Time period
May 14, 2187
Set in the distant future, the world operates as a highly regulated, technocratic society. Personal autonomy is curtailed by advanced surveillance and reproductive controls. The timestamp anchors the events as a crucial point in the protagonist's search for freedom.
Location
The Facility, The Lower Levels, Countryside
The story unfolds inside a sprawling, highly administered complex that dominates daily life. Cameras and operators monitor THX 1138's every move within the multi-level facility. The pursuit spills from the upper floors through the lower levels and into the open countryside, highlighting the contrast between enclosed control and outside freedom.
Discover the main themes in Electronic Labyrinth: THX 1138 4EB (1967). Analyze the deeper meanings, emotional layers, and social commentary behind the film.
🛰️
Surveillance
The movie centers on a society that relentlessly tracks citizens through cameras and data networks. THX 1138's movements are recorded, questioned, and manipulated by an overseen system. The relentless surveillance creates a claustrophobic atmosphere that drives the tension and the decision to escape.
🕊️
Freedom
THX 1138's escape toward the countryside symbolizes the human craving for autonomy. The attempt to break away exposes the fragility of individual choice within a controlled regime. The ending suggests freedom as a difficult, open-ended possibility.
⚙️
Control
The society uses mind-blocks and the concept of an enhanced 'perfect body' to enforce conformity. The regime's mechanisms of control are embodied in both technology and bureaucratic authority. The pursuit and manipulation of THX 1138 reveal how deeply the system intertwines with daily life.

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In a dystopian underground city of the distant future, existence is reduced to numbers and surveillance. Every movement is tracked, every desire regulated by an all-seeing state apparatus that views individuality as a threat to be managed. The date is May 14, 2187, and humanity lives within the cold embrace of a computerized world where even the most intimate connections are monitored and controlled.
THX 1138 4EB exists within this system as a designated unit, paired with YYO 7117 in a society where relationships are engineered rather than organic. Their bond represents something the regime finds both fascinating and dangerous—a reminder of human longing that technology cannot fully extinguish. Through clipped radio transmissions and omnipresent cameras, operators observe and manage the population, ensuring compliance through a blend of psychological conditioning and technological enforcement.
The tension between personal autonomy and state control permeates every corridor of this claustrophobic installation. The machinery of governance responds to any deviation with swift precision, demonstrating how fragile freedom becomes when every choice is watched and judged. The USC program guide accompanying the film describes this vision as a “nightmare impression of a world in which a man is trying to escape a computerized world which constantly tracks his movements”—a premise that transforms ordinary existence into a labyrinth of observation and resistance, where the human spirit must find ways to endure against the weight of institutional control.
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