The Dynatrope’s Deadly Function Revealed

The TARDIS crew stumbles upon the Dynatrope Machine—a colossal hexagonal metal structure embedded in a cliff face—after Jamie’s reckless exploration. The Doctor immediately recognizes its artificial nature, his urgency escalating as the machine’s door begins to open. The trio takes cover behind a boulder just as Abu, a Gond student selected as a Kroton companion, emerges in a dazed state. Before anyone can react, the machine emits a gas that envelops Abu, dissolving his body entirely, leaving only his metal breastplate and wire necklace. The Doctor’s whispered commands to hide and retreat underscore the machine’s lethal purpose, marking a pivotal moment where the Krotons’ oppressive system is exposed in visceral, horrifying detail. This revelation forces the crew to confront the true cost of the Gond people’s sacrifices and accelerates their mission to dismantle the Krotons’ control.

Plot Beats

The narrative micro-steps within this event

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Jamie leads the Doctor and Zoe to a large metal structure with a hexagonal door. They note the ramp and door, and Jamie points out a strong smell in the area, prompting the Doctor's interest.

curiosity to intrigue

The Doctor identifies the structure as a machine. As the door begins to open, he urges Jamie and Zoe to hide behind rocks for safety.

intrigue to urgency

Who Was There

Characters present in this moment

4

Alarmed and deeply unsettled by the machine's lethal function, his emotional state is a mix of confusion, concern for Abu, and readiness to defend the group. His trust in the Doctor is evident, but his instincts urge him to confront the threat directly.

Jamie reacts with alarm as the Dynatrope's door opens, his Highland instincts kicking in. He questions the Doctor about Abu's condition, his voice laced with concern and confusion. When Abu is dissolved, Jamie's shock is palpable, and he looks to the Doctor for guidance, ready to act on his command to retreat. His physical presence is tense, his body coiled as if prepared for a fight, though he follows the Doctor's lead.

Goals in this moment
  • Understanding what is happening to Abu and why, driven by his protective nature.
  • Following the Doctor's lead to ensure the crew's safety, even if it means retreating.
Active beliefs
  • That the Krotons' system is unnatural and dangerous, requiring immediate action.
  • That the Doctor's judgment in these situations is reliable, even if his methods are sometimes mysterious.
Character traits
Alert Protective of the group Quick to react to threats Dependent on the Doctor's leadership in unfamiliar situations
Follow Jamie McCrimmon's journey

Horror and empathy dominate her emotional state, tempered by her logical mind's need to understand the mechanics of the machine. She is deeply affected by Abu's fate, her sympathy underscoring the human cost of the Krotons' system.

Zoe watches the events unfold with a mix of scientific curiosity and horror. She questions the nature of the Dynatrope initially, her logical mind seeking answers. When Abu is dissolved, her empathy is immediate and visceral, her exclamation 'Oh, that poor man' reflecting her deep sympathy for his fate. She remains hidden with the others, her body language tense but controlled, her mind likely racing to process the implications of what she has witnessed.

Goals in this moment
  • Understanding the scientific and moral implications of the Dynatrope's function.
  • Supporting the Doctor and Jamie in ensuring their safety and continuing their mission to expose the Krotons.
Active beliefs
  • That the Krotons' system is built on lies and exploitation, not education or progress.
  • That the crew's mission to free the Gond people is both necessary and urgent.
Character traits
Empathetic Analytical Quick to grasp the moral weight of a situation Restrained in crises (trusting the Doctor's leadership)
Follow Zoe Heriot's journey
Abu-Gond
primary

Dazed and passive, exhibiting no resistance or fear—his emotional state is numbed, likely due to Kroton conditioning, making his dissolution all the more tragic and revealing of the system's horror.

Abu emerges from the Dynatrope in a dazed and disoriented state, still wearing his ceremonial silver cape. He stumbles forward, his movements sluggish and uncoordinated, as if under the influence of a sedative or hypnosis. Moments later, he is enveloped in a thick, opaque gas emitted by the machine's nozzles. His body dissolves entirely, leaving only his metal breastplate and wire necklace behind, which clatter to the ground. His fate serves as a brutal revelation of the Krotons' true intentions.

Goals in this moment
  • Unknowingly fulfilling his role as a Kroton 'companion' (even in death).
  • Serving as a living sacrifice to the Krotons, reinforcing their oppressive control over the Gond people.
Active beliefs
  • That his selection as a Kroton companion is an honor and a privilege, worth any cost.
  • That the Krotons are benevolent teachers and that their 'law' must be obeyed without question.
Character traits
Helpless Dazed Unquestioning (even in the face of his own demise) Symbolic of Gond's indoctrination
Follow Abu-Gond's journey

Horror-stricken yet analytically focused, balancing revulsion at the Krotons' cruelty with the need to understand and counteract their system. His urgency masks a deep moral outrage.

The Doctor quickly identifies the Dynatrope as a machine, not a natural structure, and immediately senses danger. He urges the crew to hide behind a boulder as the machine's door opens, revealing Abu. When the gas dissolves Abu, the Doctor remains hidden but observes intently, his expression a mix of horror and analytical focus. He silences Jamie and Zoe with a sharp 'Shush!' and later commands the crew to retreat, prioritizing their safety over further investigation at that moment.

Goals in this moment
  • Protecting Jamie and Zoe from immediate harm by ensuring they stay hidden and retreat.
  • Gathering critical evidence of the Krotons' true nature and their lethal control over the Gond people.
Active beliefs
  • That the Krotons' system is built on deception and oppression, not benevolence.
  • That exposing the truth is the first step to freeing the Gond people from their tyranny.
Character traits
Perceptive Protective Analytical under pressure Decisive in crises
Follow The Second …'s journey

Objects Involved

Significant items in this scene

6
Abu’s Metal Breastplate

Abu’s metal breastplate is the sole physical remnant of his body after the Dynatrope's gas dissolves him. It clatters to the ground alongside his wire necklace, a chilling testament to the machine's lethal function. The breastplate, once a symbol of honor and prestige in Gond society, now serves as a grim memento of the Krotons' deception. Its survival amid the total destruction of Abu's body underscores the selective and horrifying nature of the Krotons' process, leaving only inorganic materials behind.

Before: Worn by Abu as part of his ceremonial …
After: Lying on the rocky ground outside the Dynatrope, …
Before: Worn by Abu as part of his ceremonial attire, gleaming and intact, symbolizing his status as a top student and Kroton companion. The breastplate is a mark of pride and achievement in Gond culture.
After: Lying on the rocky ground outside the Dynatrope, the only remaining trace of Abu. The breastplate is undamaged, its metallic surface reflecting the harsh light, a stark contrast to the empty space where Abu's body once stood.
Abu’s Wire Necklace

Abu’s wire necklace, a simple yet symbolic piece of jewelry, is the second remnant left behind after his dissolution. It curls on the ground beside his metal breastplate, a fragile contrast to the heavy metal. The necklace, once a personal adornment, now becomes a poignant symbol of the Krotons' indiscriminate destruction—sparing only inorganic materials while erasing all traces of life. Its survival highlights the dehumanizing nature of the Krotons' process, reducing Abu to mere artifacts.

Before: Worn around Abu’s neck as part of his …
After: Lying on the rocky ground, its wires slightly …
Before: Worn around Abu’s neck as part of his ceremonial attire, its curled wires adding a touch of individuality to his otherwise formal outfit. The necklace is a personal item, possibly a gift or a memento from his life in the Learning Hall.
After: Lying on the rocky ground, its wires slightly tangled, the only organic material left intact. The necklace’s survival amid the dissolution of Abu’s body serves as a haunting reminder of the Krotons' selective horror.
Dynatrope Gas Emission Nozzles

The Dynatrope Nozzles are the mechanism through which the machine's lethal gas is emitted. They emerge from either side of the hexagonal door, releasing a thick, opaque gas that envelops Abu. The gas dissolves his body entirely, leaving only his metal breastplate and wire necklace behind. The nozzles function as the Dynatrope's 'weapon,' executing the Krotons' true purpose: the harvesting of brain fluid from the selected Gond students. Their precise, mechanical action contrasts with the organic horror of Abu's dissolution, emphasizing the cold, calculated nature of the Krotons' system.

Before: Retracted into the Dynatrope's structure, hidden from view …
After: Extended from the Dynatrope's sides, having emitted the …
Before: Retracted into the Dynatrope's structure, hidden from view until activated. The nozzles are part of the machine's internal mechanisms, designed to remain concealed until the moment of execution.
After: Extended from the Dynatrope's sides, having emitted the lethal gas. The nozzles are now visible, their purpose revealed, and they remain in place as a silent threat—ready to be used again on the next 'companion.'
Dynatrope Ramp

The Dynatrope Ramp serves as the pathway leading up to the machine's hexagonal door, framing Abu's emergence and subsequent dissolution. While the ramp itself plays no direct role in the lethal process, its presence underscores the ritualistic nature of the Krotons' selections. The ramp is a physical manifestation of the Gond people's forced march toward their fate, symbolizing their compliance and the Krotons' control. Jamie notes its existence, drawing attention to the machine's artificial design and the deliberate process by which the 'companions' are led to their doom.

Before: Ascending to the hexagonal door, its surface smooth …
After: Unchanged in form or function, but now imbued …
Before: Ascending to the hexagonal door, its surface smooth and unmarked, designed to guide the selected students into the Dynatrope. The ramp is part of the machine's exterior, blending seamlessly with the cliff face.
After: Unchanged in form or function, but now imbued with a sinister connotation. The ramp is no longer just a pathway but a route to destruction, its purpose revealed by Abu's fate.
Dynatrope Sacrificial Door

The hexagonal door of the Dynatrope serves as the primary mechanism through which the Krotons' lethal process is revealed. It grinds open to release Abu, who stumbles out in a dazed state, still wearing his ceremonial cape. The door frames the horror of the event, symbolizing the Krotons' control over life and death. After Abu's dissolution, the door remains open, a silent witness to the machine's deadly function, and a stark reminder of the Gond people's sacrifices.

Before: Closed, seamlessly integrated into the cliff face, its …
After: Open, revealing the dark interior of the Dynatrope. …
Before: Closed, seamlessly integrated into the cliff face, its metallic surface blending with the surrounding rock. The door is part of the Dynatrope's imposing facade, concealing the machine's true purpose.
After: Open, revealing the dark interior of the Dynatrope. The door remains ajar, a haunting portal to the machine's lethal mechanisms, now exposed to the TARDIS crew.
Dynatrope Shelter Boulder

The Dynatrope Shelter Boulder provides critical cover for the TARDIS crew as they witness Abu's dissolution. The Doctor, Jamie, and Zoe duck behind its bulk, using it to conceal their presence from the machine and any potential Kroton observers. The boulder's size and positioning shield them from the lethal gas emitted by the Dynatrope, allowing them to observe the horror unfold while remaining safe. Its rough, weathered surface and solidity contrast with the sleek, artificial nature of the Dynatrope, grounding the scene in the natural world even as the machine's unnatural function is revealed.

Before: Stationary, positioned near the Dynatrope's cliff face, its …
After: Unchanged in position or condition, but now imbued …
Before: Stationary, positioned near the Dynatrope's cliff face, its surface weathered by time and elements. The boulder serves as a natural landmark, unnoticed until the crew takes cover behind it.
After: Unchanged in position or condition, but now imbued with narrative significance as the site from which the crew witnessed Abu's fate. Its role as a shelter is reinforced, and it becomes a symbolic barrier between the crew and the Krotons' machine.

Location Details

Places and their significance in this event

2
Dynatrope Cliff Face

The Dynatrope Cliff Face is the rugged, imposing backdrop against which the machine is embedded. It frames the horror of Abu's dissolution, its jagged surface contrasting with the sleek, artificial design of the Dynatrope. The cliff face serves as a silent witness to the Krotons' oppression, its natural form a stark counterpoint to the machine's unnatural function. The crew's hiding place behind a boulder is part of this landscape, and the cliff face itself becomes a symbol of the Gond people's trapped existence—bound by the Krotons' control and the unyielding nature of their society.

Atmosphere Oppressive and foreboding, with a sense of inevitability. The cliff face looms over the scene, …
Function Backdrop and witness to the Krotons' oppression, providing a natural contrast to the machine's artificial …
Symbolism Symbolizes the Gond people's entrapment within their society and the unyielding nature of the Krotons' …
Access Open to the TARDIS crew and the Gond people, but the Dynatrope itself is restricted …
The jagged, rugged surface of the cliff, contrasting with the sleek Dynatrope. The embedded hexagonal machine, a stark intrusion into the natural landscape. The boulder behind which the crew hides, providing cover and a vantage point for observation. The rocky ground where Abu's remnants are left behind, a chilling reminder of the machine's function.
Outside the Dynatrope

Outside the Dynatrope is a rugged, exposed cliff face where the colossal hexagonal machine is embedded. This location serves as the stage for the revelation of the Krotons' true nature, as Abu emerges from the Dynatrope and is dissolved by its lethal gas. The TARDIS crew hides behind a nearby boulder, observing the horror unfold. The acrid smell in the air foreshadows the machine's deadly function, and the exposed rock amplifies the tension and isolation of the moment. The location is both a battleground—where the Krotons' oppression is exposed—and a sanctuary for the crew, who retreat to safety after witnessing the event.

Atmosphere Tense and oppressive, with a palpable sense of dread. The acrid smell in the air …
Function Battleground for the exposure of the Krotons' oppression and a sanctuary for the TARDIS crew. …
Symbolism Represents the brutal intersection of Gond society's indoctrination and the Krotons' true intentions. The exposed …
Access Open to the TARDIS crew and the Gond people, but the Dynatrope itself is restricted …
The acrid smell in the air, foreshadowing the machine's lethal gas. The rugged, exposed cliff face, amplifying the tension and isolation of the moment. The nearby boulder, providing cover for the TARDIS crew as they observe the event. The hexagonal door of the Dynatrope, grinding open to release Abu and the lethal gas. The rocky ground where Abu's metal breastplate and wire necklace clatter after his dissolution.

Organizations Involved

Institutional presence and influence

1
Krotons

The Krotons' involvement in this event is indirect but devastating. Their true nature as oppressive rulers is revealed through the Dynatrope's lethal function, as Abu is dissolved before the TARDIS crew's eyes. The machine serves as their instrument of control, harvesting the brain fluid of the Gond's top students under the guise of 'companionship.' The event exposes the Krotons' deception, their system of indoctrination, and their willingness to sacrifice the Gond people to maintain their power. The crew's witnessing of Abu's fate accelerates their mission to dismantle the Krotons' control and free the Gond people.

Representation Via institutional protocol being followed (the selection and sacrifice of 'companions') and through the Dynatrope …
Power Dynamics Exercising absolute authority over the Gond people, with the TARDIS crew as external observers challenging …
Impact The event underscores the Krotons' institutionalized oppression, revealing the true cost of their 'law' and …
Internal Dynamics The Krotons' internal dynamics are not directly visible in this event, but their system of …
Maintaining control over the Gond people through fear and deception, using the Dynatrope to harvest brain fluid from the selected 'companions.' Preserving the illusion of benevolence by presenting themselves as teachers and protectors, while secretly exploiting the Gond people for their own ends. Through the Dynatrope machine, which enforces their 'law' and executes their true purpose. Via the Gond people's indoctrination, which ensures their compliance and suppresses dissent. By manipulating the Gond's belief system, convincing them that sacrifice is an honor and that the Krotons are benevolent teachers. Through the selection process, which identifies and eliminates the most capable Gond students, ensuring the continuation of their control.

Narrative Connections

How this event relates to others in the story

What led here 3

"The Doctor urging caution and ordering the companions to hide (beat_b5667bd627c04939) precedes and sets up the reveal of Abu emerging and dissolving (beat_27dd82eb2640f0c4); the hiding is directly caused by his fear of the machine."

Abu’s Dissolution in the Dynatrope
S6E19 · The Krotons Part 1

"Jamie calling out to the Doctor and Zoe (beat_b3ab09b2ce50de68) naturally leads to them finding the large metal structure, the Dynatrope (beat_a3ac88adc2ec63d8)."

Doctor identifies unnatural erosion patterns
S6E19 · The Krotons Part 1

"Jamie calling out to the Doctor and Zoe (beat_b3ab09b2ce50de68) naturally leads to them finding the large metal structure, the Dynatrope (beat_a3ac88adc2ec63d8)."

Jamie spots the anomaly below
S6E19 · The Krotons Part 1
What this causes 3

"The Doctor urging caution and ordering the companions to hide (beat_b5667bd627c04939) precedes and sets up the reveal of Abu emerging and dissolving (beat_27dd82eb2640f0c4); the hiding is directly caused by his fear of the machine."

Abu’s Dissolution in the Dynatrope
S6E19 · The Krotons Part 1
Causal medium

"The Doctor urging retreat from the Dynatrope (beat_7356c3aa07d7f811) leads them back to the Learning Hall, where they encounter Thara attempting to stop Vana (beat_d78e836c4ab15515), resulting in a conflcit."

Jamie’s trial of strength with Axus
S6E19 · The Krotons Part 1
Causal medium

"The Doctor urging retreat from the Dynatrope (beat_7356c3aa07d7f811) leads them back to the Learning Hall, where they encounter Thara attempting to stop Vana (beat_d78e836c4ab15515), resulting in a conflcit."

Doctor exposes Kroton lies in Learning Hall
S6E19 · The Krotons Part 1

Themes This Exemplifies

Thematic resonance and meaning

Key Dialogue

"ZOE: What is it?"
"DOCTOR: This isn’t a building, this is a machine. Come along."
"JAMIE: Machine? Doctor, it's opening!"
"DOCTOR: Shush!"
"ZOE: Oh, that poor man."
"JAMIE: What happened to him?"
"DOCTOR: I don’t know, Jamie. Come on, let’s get away from here."