Selris dies delivering acid to the Doctor

Selris bursts into the Dynatrope Control room, defying Vana’s warnings to deliver a bottle of sulphuric acid to the Doctor—his last act of loyalty before the Krotons instantly vaporize him with their energy beams. The Doctor’s attempt to shield Selris fails, and his death escalates the stakes: the Krotons now hold the Doctor and Zoe hostage, demanding their assistance to stabilize the Dynatrope before its imminent collapse. The Doctor’s scientific curiosity clashes with Zoe’s defiance as the Krotons reveal the machine’s twelve-minute countdown to catastrophic failure. Selris’s sacrifice underscores the Krotons’ ruthlessness and the urgency of the Doctor’s plan to sabotage their power source. The event marks a turning point, shifting from negotiation to outright confrontation as the Doctor and Zoe are forced to comply—or risk planetary annihilation.

Plot Beats

The narrative micro-steps within this event

2

Selris arrives with the acid to aid the Doctor, but the Krotons immediately kill him.

hope to dread

The Krotons, preparing to transfer power to their cosmos, order the Doctor and Zoe to assist them as their Dynatrope nears exhaustion and threatens to destroy the planet.

urgency to desperation

Who Was There

Characters present in this moment

5

Righteously indignant with underlying tension; her defiance masks a deep concern for the planet’s fate and the Doctor’s safety.

Zoe stands defiantly beside the Doctor in the Dynatrope Control Room, her sharp analytical mind immediately assessing the Krotons' threats. She refuses to comply with their demands, her tone sharp and unyielding ('Well that's your problem'). Her defiance contrasts with the Doctor’s cautious curiosity, and she listens intently as the Krotons reveal the 12-minute countdown, her expression tightening with the weight of the impending disaster. Physically, she remains tense but composed, her posture radiating resistance.

Goals in this moment
  • Refuse to cooperate with the Krotons to undermine their authority and buy time for the Doctor’s plan.
  • Protect the Doctor and Zoe by resisting the Krotons’ demands, even at personal risk.
Active beliefs
  • The Krotons’ threats are empty posturing and can be outmaneuvered through defiance and intelligence.
  • The Doctor’s scientific approach is the key to stopping the Dynatrope, and she must support him even if it means provoking the Krotons.
Character traits
Defiant Analytical Loyal to the Doctor Quick-witted Unyielding under pressure
Follow Zoe Heriot's journey

Cold and calculating, with an underlying desperation to escape the planet before the Dynatrope collapses; his actions are driven by survival, not empathy.

The lead Kroton issues cold, authoritative commands to prepare the Dynatrope for intergalactic transfer, his voice devoid of emotion. He oversees Selris’s vaporization without hesitation, demonstrating the Krotons’ ruthless efficiency. His focus shifts to the Doctor and Zoe, demanding their assistance as the Dynatrope’s countdown is revealed. He stands rigid and unyielding, his crystalline form reflecting the machine’s urgency. His demeanor is one of absolute control, with no room for negotiation or mercy.

Goals in this moment
  • Force the Doctor and Zoe to stabilize the Dynatrope to ensure the Krotons’ escape.
  • Eliminate any resistance, including Selris, to maintain control over the situation.
Active beliefs
  • The Doctor and Zoe’s intelligence is the key to the Krotons’ survival, and they must be coerced into compliance.
  • Mercy or hesitation will result in the Krotons’ destruction, so ruthless action is justified.
Character traits
Authoritative Ruthless Methodical Unemotional Desperate for survival
Follow Lead Kroton's journey

Desperate and loyal, with a final surge of hope that his sacrifice will aid the Doctor’s cause; his death is marked by shock and sorrow.

Selris bursts into the Dynatrope Control Room, defying Vana’s warnings, his face etched with urgency and loyalty. He hands the bottle of sulphuric acid to the Doctor, his voice breaking as he cries out 'Doctor!'—a plea for help and a final act of defiance. The Krotons vaporize him instantly, his body dissolving into nothingness as his cry of 'No!' echoes. His death is swift and brutal, a stark reminder of the Krotons’ ruthlessness. Physically, he is reduced to a fleeting presence, his sacrifice immediate and irreversible.

Goals in this moment
  • Deliver the sulphuric acid to the Doctor to aid in sabotaging the Dynatrope, regardless of the personal cost.
  • Protect the Doctor and Zoe by ensuring they have the tools to fight back against the Krotons.
Active beliefs
  • The Doctor is the Gonds’ only hope of defeating the Krotons, and Selris must do everything in his power to support him.
  • The Krotons’ tyranny must be stopped, even if it means sacrificing his own life.
Character traits
Loyal to the Doctor and the Gonds Desperate Defiant against the Krotons Self-sacrificing Urgent in his final moments
Follow Selris's journey

Conflict between grief for Selris and analytical focus; his urgency is tempered by a steely resolve to outmaneuver the Krotons through intellect.

The Doctor is caught between urgency and curiosity as Selris is vaporized before his eyes. He instinctively tries to shield Selris but fails, his expression shifting from shock to grim determination. His scientific mind immediately latches onto the Krotons’ revelation about the Dynatrope’s 12-minute countdown, and he engages in rapid-fire dialogue to understand the machine’s mechanics. His tone is a mix of impatience and calculation, revealing his belief that knowledge is the key to dismantling the threat. Physically, he is alert and focused, his body language tense but controlled.

Goals in this moment
  • Understand the Dynatrope’s mechanics to devise a plan to sabotage it before the 12-minute countdown ends.
  • Protect Zoe and himself from the Krotons’ immediate threats while gathering critical information.
Active beliefs
  • The Krotons’ technological limitations can be exploited through scientific insight and quick thinking.
  • Selris’s sacrifice must not be in vain; the Doctor is now fully committed to stopping the Dynatrope at any cost.
Character traits
Quick-thinking Scientifically curious Protective of allies Strategic under pressure Impatient with threats
Follow The Second …'s journey
Supporting 1
Kroton 2
secondary

Detached and focused; his actions are driven by protocol and the collective’s survival, with no personal investment in the outcome.

Kroton 2 coordinates with the lead Kroton to prepare the Dynatrope for transfer, confirming system readiness with mechanical precision. He participates in Selris’s vaporization, his actions synchronized with the lead Kroton’s commands. His voice is flat and devoid of inflection, reinforcing the Krotons’ collective, emotionless nature. He focuses on the flashing globe of the control console, his attention fixed on the machine’s critical status. His posture is rigid, his movements efficient and purposeful.

Goals in this moment
  • Ensure the Dynatrope’s systems are stable for the intergalactic transfer.
  • Support the lead Kroton in eliminating threats and coercing the Doctor and Zoe into compliance.
Active beliefs
  • The Krotons’ survival depends on the Dynatrope’s successful transfer, and all actions must align with this objective.
  • Individual lives, including Selris’s, are expendable in the service of the collective.
Character traits
Mechanical Obedient Cold Efficient Loyal to the Kroton collective
Follow Kroton 2's journey

Objects Involved

Significant items in this scene

2
Dynatrope Control Console's Flashing Globe

The console with the flashing globe is the visual and auditory manifestation of the Dynatrope’s impending collapse. It rises up as Kroton 2 confirms system readiness, its urgent pulsing light drawing the Doctor’s attention. The globe symbolizes the ticking clock of the 12-minute countdown, its flashes growing more insistent as the machine’s stability deteriorates. The Doctor studies it intently, his scientific mind racing to decipher its mechanics. The console’s role is to heighten the tension and underscore the urgency of the Krotons’ demands, as well as the Doctor’s need to act swiftly.

Before: Functional but unstable, with the Dynatrope’s power reserves …
After: The globe continues to flash, now with even …
Before: Functional but unstable, with the Dynatrope’s power reserves dwindling. The globe is flashing erratically, signaling the countdown.
After: The globe continues to flash, now with even greater urgency, as the Krotons reveal the 12-minute deadline. Its light casts an ominous glow over the room, reinforcing the stakes of the Doctor’s dilemma.
Gonds' Sulphuric Acid Sabotage Weapon

The bottle of sulphuric acid is the pivotal tool in Selris’s final act of defiance. He delivers it to the Doctor in the Dynatrope Control Room, knowing its corrosive properties could sabotage the Krotons’ power source. The bottle is small but symbolically massive—representing the Gonds’ resistance and the Doctor’s potential to turn the tide. It is handed off in a fleeting moment of urgency, its contents unseen but its purpose clear: to dissolve the Krotons’ crystalline forms and destabilize the Dynatrope. The bottle’s role is both practical and narrative, serving as the catalyst for the Doctor’s plan to sabotage the machine.

Before: Possessed by Selris, who has retrieved it from …
After: In the Doctor’s possession, primed for use in …
Before: Possessed by Selris, who has retrieved it from Vana or another Gond rebel; it is intact and full of sulphuric acid, ready for use.
After: In the Doctor’s possession, primed for use in sabotaging the Dynatrope’s power tank. Its delivery marks the shift from passive resistance to active sabotage.

Location Details

Places and their significance in this event

1
Dynatrope Interior (Control Room)

The Dynatrope Control Room is a claustrophobic, high-stakes battleground where the fate of the planet hangs in the balance. Its cramped quarters are filled with pipes, cables, and the hum of the Dynatrope’s failing systems, creating an atmosphere of urgency and dread. The room is the Krotons’ nerve center, where they monitor the machine’s critical status and issue commands with ruthless efficiency. It is also the site of Selris’s brutal vaporization, his death serving as a grim reminder of the Krotons’ power. The Doctor and Zoe are trapped here, their backs against the wall as they face the Krotons’ ultimatum. The location’s oppressive atmosphere mirrors the desperation of the moment, with the flashing globe and the Krotons’ cold voices amplifying the tension.

Atmosphere Oppressively tense, with the hum of machinery and the Krotons’ cold voices creating a sense …
Function Battleground and command center for the Krotons, where they hold the Doctor and Zoe hostage …
Symbolism Represents the Krotons’ control over the Gonds and the planet, as well as the fragile …
Access Restricted to the Krotons and their captives; entry is heavily guarded, and escape is nearly …
The hum of the Dynatrope’s failing systems, growing louder and more erratic. The flashing globe on the control console, casting an eerie light over the room. The pipes and cables snaking across the walls, some leaking or sparking as the machine deteriorates. The cold, crystalline forms of the Krotons, their voices echoing in the confined space.

Organizations Involved

Institutional presence and influence

1
Krotons

The Krotons are the dominant force in the Dynatrope Control Room, their collective will manifested through the lead Kroton and Kroton 2. They exert absolute control, vaporizing Selris without hesitation and demanding the Doctor and Zoe’s compliance. Their actions are driven by a desperate need to escape the planet before the Dynatrope collapses, and they use their technological superiority and ruthless efficiency to coerce the Doctor into assisting them. The organization’s presence is felt in every command, every threat, and every mechanical movement of the Krotons, reinforcing their authority and the stakes of the situation.

Representation Through the lead Kroton and Kroton 2, who issue commands and enforce the Krotons’ will …
Power Dynamics Exercising absolute authority over the Doctor, Zoe, and the Gonds; their power is unchallenged in …
Impact The Krotons’ actions reflect their institutional dependence on the Dynatrope and their willingness to sacrifice …
Internal Dynamics The Krotons operate as a unified, emotionless collective, with no internal dissent or hierarchy beyond …
Force the Doctor and Zoe to stabilize the Dynatrope to ensure the Krotons’ escape from the planet. Eliminate any resistance, including Selris, to maintain control and prevent sabotage. Lethal force (vaporizing Selris to demonstrate their ruthlessness). Technological superiority (controlling the Dynatrope and its countdown). Psychological pressure (threatening the Doctor and Zoe with planetary annihilation).

Narrative Connections

How this event relates to others in the story

What led here 1

"Vana tells Selris that the Doctor needs the bottle, and Selris goes to give it to aid the doctor; however, the Krotons kill Selris immediately."

Selris rushes into the Dynatrope
S6E22 · The Krotons Part 4
What this causes 3

"Selris is killed after delivering the acid; Zoe then pours it into the Krotons' tank."

Doctor and Zoe sabotage Krotons' machine
S6E22 · The Krotons Part 4

"Selris is killed after delivering the acid; Zoe then pours it into the Krotons' tank."

Krotons dissolve from sabotage
S6E22 · The Krotons Part 4

"Selris is killed after delivering the acid; Zoe then pours it into the Krotons' tank."

Doctor and Zoe escape dissolving Dynatrope
S6E22 · The Krotons Part 4

Themes This Exemplifies

Thematic resonance and meaning

Key Dialogue

"SELRIS: Doctor!"
"DOCTOR: Look out!"
"KROTON: Set the intergalactic link."
"KROTON 2: Take off, phase two."
"KROTON: Prepare to transfer."
"KROTON 2: All systems set."
"KROTON: You will assist us now."
"DOCTOR: Assist you? In what way?"
"KROTON 2: The Dynatrope will exhaust in twelve minutes."
"ZOE: Well that's your problem."