Directed by

Ralph Thomas
Made by

Ashdown Film Productions
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Read the complete plot summary and ending explained for Some Girls Do (1969). From turning points to emotional moments, uncover what really happened and why it matters.
A series of mysterious and dangerous incidents begin to plague the development of the world’s first supersonic airliner, the SST1. These accidents range from a man being murdered by a homicidal air stewardess to sabotage acts carried out by two women during crucial testing phases. In response, the Air Ministry enlists Hugh “Bulldog” Drummond, played by Richard Johnson, to investigate the escalating threats and uncover the culprit behind these sabotage attempts.
Accompanied by the rather naive and bubbly American named Flicky, portrayed by Sydne Rome, Drummond soon discovers that a criminal genius, Carl Petersen, is behind the chaos. Petersen, who stands to gain a hefty eight million pounds if his plans succeed, has devised a sinister scheme involving highly advanced robots—attractive women equipped with electronic brains. These robots are being used to secretly sabotage the SST1 project by employing infrasound technology, which produces sound waves below the threshold of human hearing but can cause severe damage when directed at people or machinery.
The robot-assisted sabotage begins with attacks on the aircraft, but Petersen’s plans quickly turn deadly as Helga (played by Daliah Lavi) and Pandora—more lethal and intelligent female robots—start to systematically eliminate key individuals involved in the project. Among those targeted are Dudley Mortimer (a character played by Maurice Denham), an engineer, and the secret agent Miss Mary (who runs a cooking class as a cover for her espionage activities). Helga, showing both allure and menace, even attempts to kill Drummond by planting a bomb in his telephone after sleeping with him during a chance encounter at a shooting party. She also tries to crash his glider in an effort to eliminate him. Fortunately, Drummond manages to manually open his parachute after the ripcord is sabotaged and escapes death in a tense, life-threatening moment.
The investigation then takes Drummond to North Africa, where he follows up on a lead related to an infrasound-powered powerboat. Here, he receives assistance from Peregrine Carruthers (played by [Ronnie Stevens]), a contact at the British Embassy. Pandora also attempts to steal the powerboat using a miniature infrasound device, and in a thrilling race, Drummond and Peregrine compete against Helga and Pandora, who manage to capture the men and the vessel. The villains deliver them all to Petersen’s island hideout, which is manned by a host of female robots, including the endearing but malfunctioning No. 7.
On the island, Drummond reunites with Flicky, who has successfully infiltrated Petersen’s organization. During a dinner, Petersen reveals his devastating plan to use infrasound technology to destroy the SST1 during its maiden flight. That night, Drummond develops a closer relationship with Helga, after sleeping with her again, while Pandora seduces Peregrine, highlighting the manipulative nature of Petersen’s robotic creations. The following morning, Drummond attempts to retrieve the infrasound device but is intercepted. Flicky reveals that she is actually a double agent working for the Russians, and as she tries to escape with the device, Helga captures her at gunpoint. Drummond manages to escape but is eventually cornered by No. 7, who surprisingly chooses not to betray him, implying she is not truly a robot after all.
Petersen’s plan is set in motion as he forces Flicky—who is now a hostage— and Peregrine to witness the impending destruction of the SST1. Drummond, showing quick thinking and resourcefulness, scales the enemy’s fortress and uses Petersen’s own infrasound waves against him, effectively destroying the control room and thwarting the sabotage. Petersen, Pandora, and Helga are all presumed killed in the explosion, which saves the aircraft and the project.
In the aftermath, Drummond, Flicky, Peregrine, and the robot No. 7 escape the chaos. Flicky reveals her true allegiance as she escapes on the powerboat with the infrasound device, now in her possession. It is also inferred that Flicky is a double agent, working for the Russians, and she departs with the device, leaving Peregrine behind, who chooses to stay in order to foster better relations with Russia. As the island explodes in flames, Drummond finds solace in the company of No. 7, who turns out not to be a robot after all but a genuine, kind-hearted individual, adding a touch of unexpected tenderness to the high-stakes adventure.
Follow the complete movie timeline of Some Girls Do (1969) with every major event in chronological order. Great for understanding complex plots and story progression.
Initial Accidents and Sabotage
The development of the world's first supersonic airliner, the SST1, experiences a series of inexplicable accidents, including a homicidal air stewardess attack and sabotage by two women during tests. These incidents hinder the progress of the aircraft's development, raising suspicions of foul play. The Air Ministry becomes concerned and seeks an investigation.
Introduction of Drummond
The Air Ministry calls upon Hugh 'Bulldog' Drummond to investigate the sabotage and uncover the mastermind behind the attacks. Drummond begins his inquiry, assisted by Flicky, an American blonde with seemingly a scatterbrained demeanor but with crucial intelligence.
Discovery of Petersen's Plot
Drummond uncovers that Carl Petersen, a criminal mastermind, is behind the sabotage, aiming to profit eight million pounds if the SST1 is not completed on time. Petersen uses robotic agents with electronic brains to carry out sabotage using infrasound technology to thwart the project.
The Sabotage and Murders Begin
Petersen's female robots, Helga and Pandora, carry out targeted acts of sabotage and systematically murder key individuals involved with the SST1 project, including engineer Dudley Mortimer and spy Miss Mary. Their actions intensify the danger surrounding the aircraft's development.
Helga's Attempted Murder of Drummond
Helga contacts Drummond at a shooting party and attempts to kill him by planting a bomb in his telephone after seducing him. Later, she also tries to crash a glider into him, but Drummond escapes by manually opening his parachute after the sabotage of his ripcord.
Tracking the Powerboat in North Africa
Following clues, Drummond travels to North Africa to investigate an infrasound-powered powerboat linked to Petersen's operations. He is assisted by Peregrine Carruthers from the British Embassy, as Pandora attempts to kill the boat's owner with a miniature device.
The Powerboat Race and Capture
Drummond and Peregrine enter a scheduled race with the powerboat, which is also participated in by Helga and Pandora. During the race, Petersen's agents capture Drummond, Peregrine, and Flicky, bringing them to his island headquarters staffed by female robot workers, including No. 7.
Petersen's Plan Revealed
At the island, Petersen explains his plan to use the infrasound technology to sabotage the SST1's maiden flight. Meanwhile, Drummond seduces Helga again, and Pandora also tries to manipulate Peregrine during this confrontation.
Rescue and the Final Showdown
Drummond attempts to retrieve the infrasound device, aided by Flicky, who reveals herself as a CIA agent. The team rescues Peregrine and Flicky, as Petersen's robots search for them. Drummond ultimately destroys Petersen's control room, thwarting the sabotage plan and apparently killing Petersen and his accomplices.
Escape and Aftermath
Flicky, revealed as a double agent working for the Russians, escapes with the infrasound device on a powerboat. Peregrine also leaves with her to improve Russian relations. Drummond and No. 7, who is not a robot, share a moment of comfort as the base explodes, ending Petersen's threat.
Explore all characters from Some Girls Do (1969). Get detailed profiles with their roles, arcs, and key relationships explained.
Hugh 'Bulldog' Drummond
A resolute and resourceful investigator called upon to uncover sabotage threats. His determination and bravery lead him through dangerous encounters with enemy agents and robots, showcasing his leadership and combat skills.
Helga
A beautiful yet deadly robot affiliated with the antagonist. She is cunning, seductive, and capable of violence, making her a formidable femme fatale in the film’s action-packed sequences.
Pandora
An attractive and lethal robot, working alongside Helga. She seduces and sabotages, representing a dangerous blend of charm and threat, playing a key role in the conspiracy.
Flicky (Double agent)
An American spy posing as a cookery student, she infiltrates Petersen's organization. Her intelligence and quick thinking help the protagonists uncover the conspiracy, though her true allegiance is complex.
Learn where and when Some Girls Do (1969) takes place. Explore the film’s settings, era, and how they shape the narrative.
Time period
Modern era, likely 1960s or 1970s
The events are set during a period of rapid technological advancement, particularly in aerospace and robotics. The presence of supersonic aircraft, robots, and advanced sound technology indicates a contemporary setting for the film, reflecting the era's fascination with innovation and Cold War tensions.
Location
North Africa, Petersen's Island
The story shifts from a high-tech environment to a remote North African location, where Drummond follows a lead on an infrasound-powered powerboat. Petersen's island is a secluded, heavily guarded base staffed by his army of female robots, serving as the central hub for his sabotage plot. These locations are crucial for the climax, emphasizing isolation and strategic control.
Discover the main themes in Some Girls Do (1969). Analyze the deeper meanings, emotional layers, and social commentary behind the film.
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Technology & Warfare
The film explores the relationship between advanced technology and its potential for both progress and destruction. Infrasound devices, robots, and sabotage highlight how technological innovations can be weaponized, emphasizing the dual-edged nature of scientific progress.
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Artificial Intelligence & Deception
Robots with electronic brains are central to the plot, symbolizing the themes of artificial intelligence and deception. The movie examines how robots can be both tools and threats, blurring the line between human and machine in the context of espionage and sabotage.

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Discover the spoiler-free summary of Some Girls Do (1969). Get a concise overview without any spoilers.
In an era where the sky itself seems within reach, the United Kingdom is racing to launch the world’s first supersonic airliner. The project, a marvel of engineering and national pride, is shrouded in the kind of secrecy that makes every hallway feel like a corridor of whispered conspiracies. As the teams push the boundaries of speed and technology, a string of inexplicable accidents begins to cast a shadow over the ambitious timetable, turning a triumph of ambition into a puzzle of peril.
Enter Hugh “Bulldog” Drummond, a seasoned British secret agent whose reputation for tenacity is matched only by his dry wit. Dispatched by the Air Ministry, he carries the weight of expectations from both the intelligence community and a nation eager for a new symbol of progress. Drummond’s instinctive blend of daring and methodical investigation makes him the ideal figure to untangle the growing web of uncertainty surrounding the aircraft’s development.
Working alongside a fellow operative—an eager, bright‑spirited American named Flicky—Drummond finds his usual world of shadows and dossiers stretched by the high‑tech, high‑stakes arena of aerospace innovation. Their partnership balances Drummond’s seasoned cynicism with Flicky’s fresh perspective, creating a dynamic that hints at both tension and camaraderie as they navigate a landscape where every malfunction could be more than a mere technical glitch.
Behind the scenes, a schemer known as Carl Petersen looms, his motives tied to a staggering financial windfall should the project falter. The mere suggestion of such a calculated gamble adds a layer of intrigue, turning the mystery of the accidents into a broader game of international espionage and corporate ambition. In a world where cutting‑edge science meets covert intrigue, the stage is set for a thriller that blends sleek futurism with classic spycraft, leaving the audience eager to discover what secrets lie beneath the roar of the nascent supersonic engines.
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