Zoe proposes depolarizer countermeasures

In the laboratory, the Doctor and Watkins uncover the Cybermen's plan to transmit a global hypnotic signal through communication satellites, activating micro-monolithic circuits in everyday electronics to enslave humanity. As the Doctor deduces that Vaughn intends to weaponize Watkins' emotional pulse machine against the Cybermen, Zoe—observing the Doctor's work—identifies a potential countermeasure: a wearable depolarizer device capable of jamming the Cyber-control waves. The Doctor immediately tasks Zoe and Watkins with constructing these devices, elevating their mission to a race against time. The revelation of the Cybermen's systemic threat and the depolarizer's feasibility shifts the narrative from reactive defense to proactive resistance, with Zoe's scientific insight becoming the linchpin of UNIT's survival strategy. The urgency of the moment is underscored by the Brigadier's departure for Geneva, leaving the Doctor and his companions to execute the plan without UNIT's full support.

Plot Beats

The narrative micro-steps within this event

1

Zoe identifies a potential countermeasure: a depolarizer, worn at the back of the neck, that will jam the Cyber-control waves. The Doctor tasks Zoe and Watkins with constructing these devices immediately.

despair to hope

Who Was There

Characters present in this moment

9

Focused and determined, with a sense of urgency driven by the gravity of the situation.

Zoe Heriot, the astrogator, is fully engaged in the Doctor's explanation of the Cybermen's plan. She quickly identifies the depolarizer as a potential countermeasure, demonstrating her sharp analytical skills. Zoe wakes Jamie to inform him of the Doctor's discovery and is tasked by the Doctor to assist Professor Watkins in constructing the depolarizers. Her focused demeanor and technical expertise make her a critical asset in the race against time.

Goals in this moment
  • Identify and propose a viable countermeasure to the Cybermen's hypnotic signal.
  • Assist Professor Watkins in constructing the depolarizers to jam the Cyber-control waves.
Active beliefs
  • The depolarizer is a feasible solution to block the Cybermen's control signal.
  • Time is of the essence, and immediate action is required to prevent global enslavement.
Character traits
Quick-witted Technically adept Resourceful
Follow Zoe Heriot's journey

Pragmatic and slightly resigned, acknowledging the need for action despite the limitations of UNIT's support.

The Brigadier questions the Doctor about Vaughn's motives and confirms his departure for Geneva at dawn. He leaves the Doctor and his companions to execute the plan without UNIT's full support, underscoring the urgency and the limited resources available. The Brigadier's pragmatic approach highlights the institutional constraints and the need for decisive action.

Goals in this moment
  • Ensure the Doctor and his team have the information and resources needed to counter the Cybermen's threat.
  • Depart for Geneva to coordinate UNIT's global response, despite the limited support available to the Doctor's team.
Active beliefs
  • The Doctor's insights are critical to countering the Cybermen's threat, even if UNIT's support is limited.
  • Institutional protocols must be followed, but urgent action is required to prevent global catastrophe.
Character traits
Pragmatic Authoritative Supportive
Follow Brigadier Alistair …'s journey

None (Cybermen lack individual emotions, operating as a collective force).

The Cybermen are mentioned as the primary antagonists planning to transmit a global hypnotic signal through communication satellites to enslave humanity. Their emotional circuits are vulnerable to Watkins' emotional pulse machine, which Vaughn intends to weaponize against them. The Cybermen's presence looms over the scene, driving the urgency and desperation of the Doctor and his team to find a countermeasure.

Goals in this moment
  • Transmit the global hypnotic signal to enslave humanity through micro-monolithic circuits.
  • Maintain control over the invasion plan, despite Vaughn's potential betrayal.
Active beliefs
  • Humanity must be converted to Cybermen to expand their collective.
  • Emotional vulnerabilities in their systems must be protected at all costs.
Character traits
Ruthless Systematic Collective
Follow Cyberman Infantry …'s journey

Anxious and somewhat guilty, concerned about the implications of his work and his role in the unfolding crisis.

Professor Watkins apologizes for not initially understanding the purpose of the micro-monolithic circuits but later reveals details about Vaughn's modifications to the emotional pulse machine. He confirms the machine's ability to produce powerful emotional pulses and assists the Doctor by providing neuristors for the depolarizer construction. Watkins' anxious demeanor reflects his concern about the situation and his role in it.

Goals in this moment
  • Assist the Doctor and his team in any way possible to counteract the Cybermen's plan.
  • Provide technical expertise and resources to construct the depolarizers.
Active beliefs
  • His emotional pulse machine can be weaponized against the Cybermen, potentially saving humanity.
  • Time is of the essence, and immediate action is required to prevent global enslavement.
Character traits
Anxious Cooperative Technically knowledgeable
Follow Edward Watkins's journey

Not directly shown, but inferred to be calculating and cold, driven by his ambition for global supremacy.

Tobias Vaughn is mentioned as the sinister businessman planning to double-cross the Cybermen. He intends to weaponize Watkins' emotional pulse machine against the Cybermen once they have no further use for them. Vaughn's actions are a critical factor in the Doctor's deduction of the Cybermen's plan and the urgency to construct the depolarizers.

Goals in this moment
  • Use the Cybermen to achieve his goals of global control.
  • Weaponize Watkins' emotional pulse machine to betray the Cybermen and eliminate his rivals.
Active beliefs
  • The Cybermen are a means to an end, and their control can be usurped through technological means.
  • Humanity's emotional vulnerabilities can be exploited for his own gain.
Character traits
Ruthless Ambitious Manipulative
Follow Tobias Vaughn's journey

Highly focused and urgent, driven by the need to counteract the Cybermen's plan before it's too late.

The Doctor hunches over the microscope, peering intently at the Cybermen's intricate circuits, and deduces their plan to transmit a global hypnotic signal through communication satellites. He identifies Vaughn's intention to weaponize Watkins' emotional pulse machine against the Cybermen, revealing the emotional circuits' vulnerability. The Doctor sketches a rough diagram of Earth, the Moon, and satellites to explain the signal transmission plan. He tasks Zoe and Watkins with constructing depolarizers to jam the Cyber-control waves, demonstrating his urgency and strategic thinking.

Goals in this moment
  • Uncover the Cybermen's plan to transmit the global hypnotic signal and identify a countermeasure.
  • Task Zoe and Watkins with constructing depolarizers to jam the Cyber-control waves and prevent global enslavement.
Active beliefs
  • The depolarizer is a viable solution to block the Cybermen's control signal.
  • Time is critical, and immediate action is required to save humanity from enslavement.
Character traits
Brilliant Urgent Strategic
Follow The Second …'s journey
Supporting 3

Initially annoyed but quickly shifting to curiosity and engagement as he grasps the severity of the situation.

Jamie McCrimmon initially complains about being woken up, showing his irritation at the disruption to his sleep. However, he quickly joins the group to discuss the Cybermen's plan, displaying curiosity and a willingness to engage. Jamie listens to the Doctor's explanation and shows interest in the rough drawing of the Earth, Moon, and satellites, indicating his growing understanding of the threat.

Goals in this moment
  • Understand the Cybermen's plan and the potential countermeasures being discussed.
  • Support the Doctor and his team in any way possible, despite his initial reluctance.
Active beliefs
  • The Cybermen pose a serious and immediate threat that requires everyone's attention.
  • The Doctor's insights and strategies are reliable, even if they disrupt his rest.
Character traits
Initially irritable Curious Adaptable
Follow Jamie McCrimmon's journey

Worried and anxious about the potential for global control by the Cybermen, but engaged in the discussions about countermeasures.

Isobel Watkins expresses concern about the Cybermen's plan to control everyone through the micro-monolithic circuits. She listens intently to the Doctor's explanation and the discussion about the depolarizer, showing her worry about the global implications of the invasion. Isobel's presence adds a human element to the technical and strategic discussions, emphasizing the personal stakes of the situation.

Goals in this moment
  • Understand the full extent of the Cybermen's plan and its implications for humanity.
  • Support the Doctor and his team in any way she can, even if her role is more observational.
Active beliefs
  • The Cybermen's plan is a serious threat that must be stopped at all costs.
  • The Doctor and his team are humanity's best hope for countering the invasion.
Character traits
Empathetic Worried Engaged
Follow Isobel Watkins's journey

Concerned yet determined, balancing skepticism with a willingness to act on the Doctor's insights.

Captain Turner stands near the Doctor, listening intently as the Doctor explains the Cybermen's plan. He questions the feasibility of countering the threat, showing concern for the global implications of the invasion. Turner confirms the Brigadier's departure for Geneva, leaving the Doctor and his team to act without full UNIT support. His presence underscores the urgency and the limited resources available to the group.

Goals in this moment
  • Understand the Cybermen's plan and its implications for UNIT's response.
  • Ensure the Doctor's team has the support and resources needed to counter the threat, despite the Brigadier's absence.
Active beliefs
  • The Cybermen's threat is real and imminent, requiring immediate action.
  • UNIT's resources, though limited, must be used strategically to maximize effectiveness.
Character traits
Analytical Pragmatic Supportive
Follow Turner's journey

Objects Involved

Significant items in this scene

7
Doctor's Microscope

The Doctor hunches over the laboratory microscope, peering intently at the Cybermen's intricate circuits to deduce their plan. The microscope serves as a critical tool for scientific analysis, allowing the Doctor to uncover the emotional circuits' vulnerability and the broader scheme of the Cybermen's invasion. Its use underscores the urgency and precision required to counter the threat.

Before: Available and in use by the Doctor in …
After: Continues to be used by the Doctor and …
Before: Available and in use by the Doctor in the laboratory, focused on analyzing Cybermen circuits.
After: Continues to be used by the Doctor and potentially others in the lab, now with a clearer understanding of the Cybermen's plan.
Cerebraton Mentor Machine

The Cerebraton Mentor machine, developed by Professor Watkins, is revealed to be a potential weapon against the Cybermen. Vaughn intends to weaponize it to exploit the Cybermen's emotional vulnerabilities, targeting their circuits for destruction. The machine's ability to produce powerful emotional pulses is central to the Doctor's deduction of the Cybermen's plan and the urgency to construct the depolarizers as a countermeasure.

Before: Modified by Vaughn and ready for use as …
After: Continues to be a critical factor in the …
Before: Modified by Vaughn and ready for use as a weapon against the Cybermen, located off-site in Vaughn's office.
After: Continues to be a critical factor in the Doctor's strategy, with its potential use looming as a double-edged sword in the conflict.
Cyberman Hypnotic Signal Satellites

The communication satellites are identified as the transmission vector for the Cybermen's hypnotic signal. These orbiting satellites will relay the signal to the micro-monolithic circuits embedded in everyday electronics, enabling the Cybermen's plan for global control. The Doctor's explanation of their role is critical in understanding the scale and mechanism of the threat.

Before: Orbiting Earth, functioning normally but poised to be …
After: Remain a critical component of the Cybermen's plan, …
Before: Orbiting Earth, functioning normally but poised to be hijacked by the Cybermen's signal.
After: Remain a critical component of the Cybermen's plan, now understood to be the transmission medium for the hypnotic signal.
Cybermen’s Global Micro-Monolithic Circuit Network

The micro-monolithic circuits are identified as artificial nervous systems that, once activated, will produce the Cyber-hypnotic force controlling human beings. These circuits, embedded in everyday electronics, are the key to the Cybermen's plan for global enslavement. The Doctor's realization that they are emotional circuits shifts the understanding of the threat and highlights the need for a countermeasure like the depolarizer.

Before: Embedded in IE equipment worldwide, dormant but poised …
After: Remain a critical vulnerability, now understood to be …
Before: Embedded in IE equipment worldwide, dormant but poised to be activated by the Cybermen's signal.
After: Remain a critical vulnerability, now understood to be emotional circuits that can be targeted by the depolarizer.
Depolarizer

Zoe identifies the depolarizer as a wearable device positioned at the back of the neck, capable of jamming the Cybermen's hypnotic control waves. The Doctor tasks Zoe and Professor Watkins with constructing these devices urgently, elevating their mission to a race against time. The depolarizer becomes the linchpin of humanity's survival strategy, offering a proactive countermeasure to the Cybermen's systemic threat.

Before: Conceptualized but not yet constructed; the components (neuristors) …
After: Now a critical priority for construction, with Zoe …
Before: Conceptualized but not yet constructed; the components (neuristors) are available in the laboratory.
After: Now a critical priority for construction, with Zoe and Watkins tasked with building the devices as quickly as possible.
Doctor's Rough Diagram of Earth, Moon, Satellites, and Cybermen Ship

The Doctor grabs a piece of board and sketches a rough diagram showing Earth, the Moon, orbiting communication satellites, and the Cybermen's invasion spaceship. This visual aid is crucial for explaining the signal transmission plan, illustrating how the Cybermen intend to boost signals from the Moon to enslave humanity. The diagram helps the team grasp the global scale of the threat and the urgency of their mission.

Before: Blank piece of board in the laboratory, ready …
After: Now marked with the Doctor's rough diagram, serving …
Before: Blank piece of board in the laboratory, ready for use as a visual aid.
After: Now marked with the Doctor's rough diagram, serving as a reference for the team's understanding of the Cybermen's plan.
Laboratory Neuristors (Watkins' Lab Equipment)

The Doctor halts work on the third depolarizer unit due to an exhaustion of neuristors, sparking a desperate scramble as the team tears through shelves and machinery for spares. These specialized electronic components are essential for assembling the wearable depolarizer devices, which are humanity's only hope against the Cybermen's control signal. The shortage of neuristors adds a layer of urgency and tension to the mission.

Before: Available in limited quantities in the laboratory, sufficient …
After: Exhausted, with the team scrambling to find additional …
Before: Available in limited quantities in the laboratory, sufficient for initial construction but insufficient for full-scale production.
After: Exhausted, with the team scrambling to find additional neuristors to complete the depolarizers.

Location Details

Places and their significance in this event

1
Professor Watkins' Laboratory at Travers' House

Professor Watkins' laboratory at Travers' House serves as the central hub for planning and countermeasure development. The cluttered space is filled with scientific equipment, including the microscope and shelves of components like neuristors. The Doctor's rough diagram of Earth, the Moon, and satellites is sketched here, and the team gathers to discuss the Cybermen's plan and the urgency of constructing the depolarizers. The laboratory's atmosphere is tense and urgent, with the weight of the global threat pressing down on the team.

Atmosphere Tense and urgent, with a sense of desperation and focused intensity. The cluttered laboratory reflects …
Function Central hub for scientific analysis, strategic planning, and the construction of countermeasures against the Cybermen's …
Symbolism Represents the intersection of human ingenuity and the desperate struggle against an existential threat. The …
Access Restricted to the Doctor, his companions, and key allies like Professor Watkins and Captain Turner. …
Cluttered benches with scientific equipment, including a microscope and shelves of components. A rough diagram of Earth, the Moon, and satellites sketched on a piece of board by the Doctor. Tense, whispered conversations and urgent movements as the team works to construct the depolarizers.

Organizations Involved

Institutional presence and influence

2
Cybermen

The Cybermen (Invasion Force) are the primary antagonists in this event, with their plan to transmit a global hypnotic signal through communication satellites to enslave humanity. Their presence looms over the scene, driving the urgency and desperation of the Doctor and his team to find a countermeasure. The Cybermen's emotional circuits are vulnerable to Watkins' emotional pulse machine, which Vaughn intends to weaponize against them, adding a layer of complexity to the conflict.

Representation Through their collective actions and the Doctor's deductions about their plan. The Cybermen are not …
Power Dynamics Exercising overwhelming power through their technological and numerical superiority, threatening to enslave humanity through the …
Impact The Cybermen's influence is felt through the global threat they pose, driving the urgency and …
Internal Dynamics The Cybermen operate as a collective force, with no internal dissent or individual will. Their …
Transmit the global hypnotic signal to enslave humanity through micro-monolithic circuits. Maintain control over the invasion plan, despite Vaughn's potential betrayal. Through the hypnotic signal and the micro-monolithic circuits embedded in everyday electronics. By leveraging their collective intelligence and ruthless execution of their plan.
United Nations Intelligence Taskforce (UNIT)

UNIT is represented in this event through the presence of Captain Turner and the earlier mention of the Brigadier's departure for Geneva. UNIT's role is to coordinate military responses to the Cybermen invasion, but their support is limited due to the Brigadier's absence and the urgency of the situation. The Doctor and his team are left to execute the plan without full UNIT backing, highlighting the institutional constraints and the need for independent action.

Representation Through Captain Turner, who confirms the Brigadier's departure and the limited support available to the …
Power Dynamics Exercising limited authority and support due to the Brigadier's absence, leaving the Doctor and his …
Impact The limited support from UNIT underscores the institutional constraints and the need for the Doctor's …
Internal Dynamics The Brigadier's departure for Geneva highlights the tension between institutional protocols and the need for …
Coordinate a global response to the Cybermen invasion through UNIT's command structure in Geneva. Provide limited but critical support to the Doctor and his team in their efforts to counteract the Cybermen's plan. Through institutional protocols and the authority of the Brigadier, even in his absence. By providing resources and intelligence, albeit limited, to the Doctor's team.

Narrative Connections

How this event relates to others in the story

What led here 2

"Gregory's death (beat_de854ec2ee8b622d) prompts the Doctor to realize Vaughn is using the Cerebraton Machine on the Cybermen and the micro-monolithic circuits are emotional (beat_064ea79039448c3f)."

Packer orders Gregory’s execution
S6E16 · The Invasion Part 6

"The Doctor realizing Vaughn's intentions (beat_064ea79039448c3f) directly leads him to deduce the Cybermen's plan to use satellites for a global hypnotic signal (beat_8da7368f890e7118)."

Doctor reveals Vaughn’s betrayal and Cybermen’s global plan
S6E16 · The Invasion Part 6
What this causes 2

"The Doctor realizing Vaughn's intentions (beat_064ea79039448c3f) directly leads him to deduce the Cybermen's plan to use satellites for a global hypnotic signal (beat_8da7368f890e7118)."

Doctor reveals Vaughn’s betrayal and Cybermen’s global plan
S6E16 · The Invasion Part 6

"The decision to create depolarizers (beat_c44442365083ebf9) lead to construction, but only three depolarizers (beat_6e5b38ad606dff77)."

Doctor scrambles for depolarizer components
S6E16 · The Invasion Part 6

Themes This Exemplifies

Thematic resonance and meaning

Part of Larger Arcs

Key Dialogue

"DOCTOR: The micro-monolithic circuits are artificial nervous systems. Once activated they will produce the Cyber-hypnotic force that controls human beings."
"ZOE: The depolariser. Worn at the back of the neck, it will jam the Cyber-control waves."
"DOCTOR: Yes. Have you any neuristors here, Professor? Zoe, I want you to show the Professor what to do. The invasion could come at any moment."