Cybermen seize control and betray Klieg

The Cyber-Controller seizes dominance over the archaeological team in the Central Chamber, exposing its true agenda: the conquest of Earth. Klieg, who initially sought to control the Cybermen for his own ambitions, is violently attacked by Toberman—a partially converted human now under Cyber-control—while the Doctor and companions arrive to witness the escalating threat. Kaftan, Klieg’s accomplice, defies the Controller and is executed for her resistance, sparking Toberman’s temporary break from Cyber-control. The Doctor appeals to Toberman’s lingering humanity, urging him to fight back, which culminates in Toberman destroying the Controller and halting the immediate Cybermen advance. Meanwhile, Klieg, feigning unconsciousness, seizes the Cybergun and descends into the tombs, setting up his later betrayal and the Doctor’s urgent need to intervene before the Cybermen’s full invasion force is unleashed. This moment marks the point of no return in the Cybermen’s resurgence, forcing the Doctor to confront both the Cybermen’s threat and humanity’s destructive tendencies.

Plot Beats

The narrative micro-steps within this event

1

Klieg dismisses Callum's concerns about their motives, and Kaftan reveals their intention to build a 'better world.' Toberman, under Cyber-control, then suddenly attacks Klieg.

Inquiry to violence

Who Was There

Characters present in this moment

10
Toberman
primary

Torn between his Cyber-enhanced obedience and lingering humanity, his violence giving way to sorrow and resolve as he rejects the Cybermen's control and avenges Kaftan's death.

Toberman, partially converted by the Cybermen, attacks Klieg under the Controller's command but breaks free when the Doctor appeals to his humanity. In a climactic struggle, he destroys the Controller by hurling it into the control panel, halting the Cybermen's advance. He cradles Kaftan's body afterward, his conflicted emotions resolving into a tragic resolve to fight back against the Cybermen's control.

Goals in this moment
  • Break free from the Cybermen's control and reclaim his humanity.
  • Destroy the Cyber-Controller to halt the immediate threat and avenge Kaftan's death.
Active beliefs
  • The Cybermen have stripped him of his humanity, turning him into a weapon.
  • He must fight back to reclaim his identity and protect what remains of his allies.
Character traits
Conflicted Violent (under control) Resolute Sorrowful
Follow Toberman's journey

Urgent and compassionate, his determination to stop the Cybermen tempered by a deep sorrow for the human cost of their ambition, driving him to act decisively and selflessly.

The Doctor enters the Central Chamber with Jamie and Parry, witnessing the Cyber-Controller's betrayal and Kaftan's execution. He seizes the moment to appeal to Toberman's humanity, urging him to break free and destroy the Controller. He then prepares to descend into the tombs to confront the Cybermen, his urgency and compassion driving the scene's climax. His actions mark the turning point in the battle against the Cybermen, forcing him to confront both the machines' threat and humanity's self-destructive tendencies.

Goals in this moment
  • Appeal to Toberman's humanity to break the Cybermen's control and destroy the Controller.
  • Descend into the tombs to confront the Cybermen and prevent their escape to Earth.
Active beliefs
  • The Cybermen represent an existential threat that must be stopped at all costs.
  • Humanity's survival depends on unity and moral clarity in the face of overwhelming danger.
Character traits
Urgent Compassionate Determined Strategic
Follow The Second …'s journey

Ruthlessly authoritative, its cold logic masking a hunger for conquest, its betrayal of Klieg and execution of Kaftan revealing its true nature as an unstoppable force of destruction.

The Cyber-Controller enters the Central Chamber with the Doctor's group, praising Toberman's Cyber-control and ordering the opening of the tombs. It executes Kaftan for her defiance, only to be destroyed by Toberman in a climactic struggle. Its ruthless authority is exposed as a facade, its true agenda of conquest laid bare before its demise. The Controller's actions mark the irreversible escalation of the Cybermen's threat, forcing the Doctor to confront their ruthlessness.

Goals in this moment
  • Open the tombs and unleash the Cybermen to conquer Earth.
  • Eliminate any resistance, including Kaftan and Klieg, to ensure the Cybermen's dominance.
Active beliefs
  • Humanity is weak and must be converted or destroyed to ensure the Cybermen's survival.
  • Promises and morality are irrelevant in the face of logical superiority.
Character traits
Ruthless Authoritative Cold Deceptive
Follow Cyber Controller's journey

None (emotionless, following orders), their mechanical precision and superhuman strength making them an unstoppable force of destruction.

A Cyberman climbs the ladder into the Central Chamber during the struggle, only to be shot by Jamie. The Cyber-Controller commands others to report to the surface, their emotionless obedience underscoring the relentless threat they pose. Their presence in the chamber marks the irreversible escalation of the Cybermen's resurgence, forcing the Doctor to act decisively to halt their advance.

Goals in this moment
  • Obey the Cyber-Controller's orders to open the tombs and report to the surface.
  • Capture or eliminate any resistance to the Cybermen's conquest.
Active beliefs
  • The Cybermen's survival and dominance are the only logical outcomes.
  • Humanity is inferior and must be converted or destroyed.
Character traits
Emotionless Obedient Relentless Mechanical
Follow Cybermen (Collective)'s journey

Alert and protective, his loyalty to the Doctor and companions driving his actions, ensuring their safety amid the chaos and violence.

Jamie enters the Central Chamber with the Doctor, picking up the Cybergun during the struggle between Toberman and the Controller. He shoots a Cyberman climbing the ladder, his quick thinking and loyalty to the Doctor on full display. He offers the gun to the Doctor before he descends into the tombs, his protective instincts ensuring the Doctor is as prepared as possible for the confrontation ahead.

Goals in this moment
  • Protect the Doctor and companions from the Cybermen's immediate threat.
  • Support the Doctor's mission by providing him with the tools he needs to confront the Cybermen.
Active beliefs
  • The Cybermen must be stopped before they escape to Earth and threaten humanity.
  • Loyalty and quick action are essential to survival in the face of overwhelming danger.
Character traits
Alert Protective Loyal Quick-thinking
Follow Jamie McCrimmon's journey
Eric Klieg
primary

Coldly calculating, his fear masked by a feigned vulnerability, revealing a man willing to betray anyone to achieve his goals, even as the world around him collapses into chaos.

Klieg, initially confident in his plan to control the Cybermen, is violently attacked by Toberman under the Controller's command. He feigns unconsciousness as the Doctor and Toberman prepare to descend into the tombs, seizing the opportunity to steal the Cybergun and slip away unnoticed. His ruthless opportunism is on full display as he prioritizes his own survival and ambition over the lives of his allies.

Goals in this moment
  • Survive the immediate threat and escape the Central Chamber unnoticed.
  • Secure the Cybergun to regain control over the Cybermen and advance his conquest of Earth.
Active beliefs
  • Power is the only currency that matters, and morality is a weakness to be exploited.
  • The Cybermen can be controlled if he acts decisively and without hesitation.
Character traits
Ruthless Opportunistic Deceptive Self-preserving
Follow Eric Klieg's journey

Defiant and desperate, her loyalty to Klieg shattered by the Cyber-Controller's betrayal, leaving her with no choice but to resist—even if it costs her life.

Kaftan, initially complicit in Klieg's plan, defies the Cyber-Controller when he breaks his promise, retrieving a gun from her bag and firing at him in open rebellion. Her defiance is met with execution, her body later cradled by Toberman in a moment of tragic irony. Her death marks the collapse of Klieg's alliance and the irreversible escalation of the Cybermen's threat.

Goals in this moment
  • Protect herself and her allies from the Cyber-Controller's betrayal.
  • Defy the Cybermen's authority, even at the cost of her life.
Active beliefs
  • The Cybermen cannot be trusted, and their promises are worthless.
  • Humanity's survival depends on resisting the Cybermen's control, no matter the cost.
Character traits
Defiant Loyal (to Klieg, but with limits) Desperate Tragic
Follow Kaftan's journey
Supporting 3

Deeply conflicted, his intellectual fascination with the Cybermen clashing with his moral horror at their actions, leaving him supportive but emotionally drained by the violence.

Professor Parry enters the Central Chamber with the Doctor and witnesses the Cyber-Controller's betrayal and Kaftan's execution. He stands by as Toberman destroys the Controller, his moral opposition to the Cybermen's actions reinforced. He offers the Doctor a quiet 'Good luck' as the Doctor prepares to descend into the tombs, his role as a reluctant observer to the violence underscoring his intellectual curiosity and ethical limits.

Goals in this moment
  • Ensure the Doctor's mission to stop the Cybermen succeeds, even if it means confronting his own complicity in awakening them.
  • Protect the remaining members of the expedition from further harm.
Active beliefs
  • The Cybermen represent a force of destruction that must be contained, not controlled.
  • Human ambition, when unchecked, leads to catastrophic consequences.
Character traits
Moral Intellectually curious Supportive Conflict-averse
Follow Parry's journey

Anxious and fearful, but steadfast in her compassion for the injured Callum, masking her terror with a focus on helping others amid the chaos.

Victoria stands near Callum, expressing concern for his injury and the escalating chaos in the Central Chamber. She reacts with fear as the Doctor prepares to descend into the tombs, her compassionate nature surfacing as she tends to Callum's wounded arm while the room descends into violence and betrayal.

Goals in this moment
  • Tend to Callum's injury and ensure his safety amid the violence.
  • Stay close to Jamie and the Doctor for protection and guidance.
Active beliefs
  • The Cybermen represent an existential threat that must be stopped at all costs.
  • Humanity's survival depends on unity and quick thinking in the face of overwhelming danger.
Character traits
Compassionate Anxious Protective Observant
Follow Victoria Waterfield's journey
Callum
secondary

Physically and emotionally overwhelmed, his pain and helplessness contrasting with his earlier cautious skepticism, now reduced to a wounded spectator in the unfolding chaos.

Callum, injured and unable to move his arm, lies on the ground as Victoria tends to him. He questions Klieg and Kaftan's motives earlier in the scene, revealing his skepticism of their ambitions. His vulnerability and pain make him a passive observer to the escalating conflict, his role shifting from a cautious security crewman to a wounded bystander.

Goals in this moment
  • Survive the immediate threat and recover from his injury.
  • Warn others of the dangers posed by Klieg and Kaftan's reckless ambitions.
Active beliefs
  • Klieg and Kaftan's pursuit of power is morally and practically dangerous.
  • The Cybermen are an uncontrollable force that will destroy everyone if unleashed.
Character traits
Skeptical Vulnerable Observant Pain-tolerant
Follow Callum's journey

Objects Involved

Significant items in this scene

4
Central Chamber Cybermen Security Control Panel

The Doctor crouches to rewire the Central Chamber Control Panel, rigging its circuits to electrify the main doors as a lethal trap against the Cybermen. Moments later, Toberman grabs the Cyber-Controller and hurls it headlong into the panel, shattering its components in a burst of sparks that destroys both the Controller and the panel. The panel's destruction halts the Cybermen's command structure, marking a critical turning point in the battle. Its exposed wiring and toggles underscore the frantic improvisation amid betrayal and execution.

Before: Functional but vulnerable, its circuits accessible for rewiring …
After: Destroyed in the struggle, its components shattered and …
Before: Functional but vulnerable, its circuits accessible for rewiring by the Doctor.
After: Destroyed in the struggle, its components shattered and wiring exposed, rendering it inoperable.
Central Chamber Ladder

The Central Chamber Ladder serves as a critical access point during the struggle, with a Cyberman climbing it into the chamber. Jamie shoots the Cyberman as it ascends, its remains pushed back down the ladder, symbolizing the desperate battle to contain the Cybermen's advance. The ladder's rungs are also used by Toberman to hurl the Cyber-Controller onto the control panel, sparking the explosion that halts the immediate threat.

Before: Intact and accessible, providing a direct route between …
After: Damaged by the struggle, with the Cyberman's remains …
Before: Intact and accessible, providing a direct route between the Central Chamber and the tombs below.
After: Damaged by the struggle, with the Cyberman's remains pushed down and the ladder's structural integrity compromised by the chaos.
Kaftan’s Handgun (Central Chamber, Parts 2–4)

Kaftan retrieves this handgun from her bag and fires at the Cyber-Controller in defiance, only to be executed for her resistance. The gun is later passed to Hopper, Callum, and Victoria, who use it against the Cybermats before it is abandoned on the hatch steps. Its brief role in the struggle underscores the desperation of the human resistance against the Cybermen's overwhelming force, a futile but defiant act of defiance.

Before: Loaded and concealed in Kaftan's bag, a last …
After: Abandoned on the hatch steps after being used …
Before: Loaded and concealed in Kaftan's bag, a last resort in the face of the Cybermen's betrayal.
After: Abandoned on the hatch steps after being used against the Cybermats, its ammunition spent and its purpose fulfilled.
Klieg's Cybergun

The Cybergun is placed on the table by Klieg, picked up by the Cyber-Controller, and dropped during the struggle between Toberman and the Controller. Jamie retrieves it and uses it to shoot a Cyberman climbing the ladder. Later, Klieg feigns unconsciousness and steals the gun, descending into the tombs with it. The Cybergun symbolizes the shifting power dynamics in the chamber, from Klieg's failed ambition to the Doctor's desperate mission to stop the Cybermen.

Before: Functional and loaded, placed on the table by …
After: Stolen by Klieg and taken into the tombs, …
Before: Functional and loaded, placed on the table by Klieg as a symbol of his attempted control over the Cybermen.
After: Stolen by Klieg and taken into the tombs, its power now in the hands of a ruthless opportunist.

Location Details

Places and their significance in this event

1
Central Control Chamber (Cybermen Tomb)

The Central Chamber serves as the battleground for the Cyber-Controller's betrayal and the desperate struggle to halt the Cybermen's advance. It houses the control panel, ladder, and hatch, all of which are critical to the action. Sparks fly from the overloaded panel as the Controller is destroyed, filling the air with the scent of burning metal and the echoes of violence. The chamber's cold metal walls and dim light amplify the tension, making it a claustrophobic arena for the clash between humanity and the Cybermen.

Atmosphere Tension-filled with the scent of burning metal, echoed by the sounds of struggle, gunfire, and …
Function Battleground and command center, where the Cybermen's betrayal is exposed and the human resistance makes …
Symbolism Represents the fragile boundary between human ambition and the unstoppable force of the Cybermen, a …
Access Initially restricted to the expedition team, but breached by the Cybermen as they climb the …
Cold metal walls reflecting the dim light Sparks flying from the overloaded control panel The scent of burning metal and gunpowder Echoes of struggle, gunfire, and the Cyber-Controller's cold commands

Organizations Involved

Institutional presence and influence

2
Cybermen

The Cybermen, commanded by the Cyber-Controller, direct the extermination of humans and the conquest of Earth. The Controller issues kill orders, remotely activates Toberman, and betrays Klieg's alliance by executing Kaftan and Klieg. It breaks restraints with mechanical force, deploys second weapons alongside Cybermats and Cyberguns, and commands the Cybermen to report to the surface. Toberman's destruction of the Controller forces a retreat into the tombs, but the threat lingers, underscoring the Cybermen's relentless logic and superiority.

Representation Through the Cyber-Controller's actions and the Cybermen's obedient responses, their collective force is manifested in …
Power Dynamics Exercising absolute authority over the humans, the Cybermen's power is only temporarily halted by Toberman's …
Impact The Cybermen's actions reflect their institutionalized logic, where survival and dominance are the only valid …
Internal Dynamics The Cybermen operate as a unified force, with the Controller as the central command. Toberman's …
Open the tombs and unleash the full Cybermen invasion force to conquer Earth. Eliminate all human resistance, including Klieg, Kaftan, and the Doctor's companions. Mechanical force and superior technology, overwhelming human resistance. Psychological manipulation, exploiting human emotions and weaknesses (e.g., Toberman's partial conversion).
Professor Parry's Archaeological Expedition to Telos

Professor Parry's Archaeological Expedition to Telos is fractured by Klieg and Kaftan's reckless ambition, which awakens the Cybermen and leads to the team's betrayal and near-destruction. The expedition's original goal of scientific discovery is overshadowed by the Cybermen's threat, with Parry's moral opposition to their actions reinforced as the team unravels. The event marks the collapse of the expedition's unity, leaving Parry as a reluctant observer to the violence and a supporter of the Doctor's mission to stop the Cybermen.

Representation Through Parry's moral opposition and the expedition team's fractured loyalty, the organization's original purpose is …
Power Dynamics Being challenged by external forces (the Cybermen) and internal betrayal (Klieg and Kaftan), the expedition's …
Impact The expedition's failure underscores the dangers of unchecked ambition and the fragility of human institutions …
Internal Dynamics Factional disagreement emerges as Klieg and Kaftan's betrayal exposes the expedition's internal divisions, with Parry's …
Survive the Cybermen's betrayal and escape the Central Chamber alive. Support the Doctor's mission to stop the Cybermen and prevent their escape to Earth. Moral authority and intellectual curiosity, though largely ineffective against the Cybermen's force. Reluctant cooperation with the Doctor, who becomes the de facto leader in the crisis.

Narrative Connections

How this event relates to others in the story

What led here 6

"Witnessing Kaftan's brutal execution leads to the Doctor's attempt to appeal to Toberman's humanity, triggering Toberman to break free from Cyber-control and attack the Controller."

Toberman’s Breaking Point and the Controller’s Fall
S5E4 · The Tomb of the Cybermen …

"Witnessing Kaftan's brutal execution leads to the Doctor's attempt to appeal to Toberman's humanity, triggering Toberman to break free from Cyber-control and attack the Controller."

Klieg’s Betrayal and the Doctor’s Descent
S5E4 · The Tomb of the Cybermen …

"Controller is temporarily defeated and KAftan executed, prompting the Doctor to try appealing to Toberman's humanity."

Toberman’s Breaking Point and the Controller’s Fall
S5E4 · The Tomb of the Cybermen …

"Controller is temporarily defeated and KAftan executed, prompting the Doctor to try appealing to Toberman's humanity."

Klieg’s Betrayal and the Doctor’s Descent
S5E4 · The Tomb of the Cybermen …

"After destroying the Controller, the Doctor prepares to descend into the tomb, taking Toberman, still vulnerable to Cyber influence, with him."

Toberman’s Breaking Point and the Controller’s Fall
S5E4 · The Tomb of the Cybermen …

"After destroying the Controller, the Doctor prepares to descend into the tomb, taking Toberman, still vulnerable to Cyber influence, with him."

Klieg’s Betrayal and the Doctor’s Descent
S5E4 · The Tomb of the Cybermen …
What this causes 8

"Klieg's ambition drives him to thwart the Doctor's attempt to freeze the Cybermen, solidifying his role as a primary antagonist."

Doctor exposes Klieg’s delusional grandeur
S5E4 · The Tomb of the Cybermen …

"Witnessing Kaftan's brutal execution leads to the Doctor's attempt to appeal to Toberman's humanity, triggering Toberman to break free from Cyber-control and attack the Controller."

Toberman’s Breaking Point and the Controller’s Fall
S5E4 · The Tomb of the Cybermen …

"Witnessing Kaftan's brutal execution leads to the Doctor's attempt to appeal to Toberman's humanity, triggering Toberman to break free from Cyber-control and attack the Controller."

Klieg’s Betrayal and the Doctor’s Descent
S5E4 · The Tomb of the Cybermen …

"Klieg's ambition drives him to thwart the Doctor's attempt to freeze the Cybermen, solidifying his role as a primary antagonist."

Doctor exposes Klieg’s delusions
S5E4 · The Tomb of the Cybermen …

"Controller is temporarily defeated and KAftan executed, prompting the Doctor to try appealing to Toberman's humanity."

Klieg’s Betrayal and the Doctor’s Descent
S5E4 · The Tomb of the Cybermen …

"Controller is temporarily defeated and KAftan executed, prompting the Doctor to try appealing to Toberman's humanity."

Toberman’s Breaking Point and the Controller’s Fall
S5E4 · The Tomb of the Cybermen …

"After destroying the Controller, the Doctor prepares to descend into the tomb, taking Toberman, still vulnerable to Cyber influence, with him."

Toberman’s Breaking Point and the Controller’s Fall
S5E4 · The Tomb of the Cybermen …

"After destroying the Controller, the Doctor prepares to descend into the tomb, taking Toberman, still vulnerable to Cyber influence, with him."

Klieg’s Betrayal and the Doctor’s Descent
S5E4 · The Tomb of the Cybermen …

Themes This Exemplifies

Thematic resonance and meaning

Part of Larger Arcs

Key Dialogue

"KAFTAN: No. You have broken your promise."
"CONTROLLER: Cybermen do not promise. Such ideas have no value. Open."
"DOCTOR: Look what they've done. You're not like them. You're a man like us. You must help us! He has killed Kaftan! You must help us."
"TOBERMAN: Evil!"
"DOCTOR: They must be destroyed, do you see? Evil must be destroyed. Now, come!"