Computer turns hostile on the Doctor and Peri

The Doctor and Peri arrive on the compromised space station amid signs of recent violence. Peri urges retreat, but the Doctor insists on uncovering the truth despite the evident destruction. Their investigation is disrupted when the station’s computer declares hostile intent, citing the Doctor’s people. Quickly dispensing with the absurdity of machine authority, the Doctor rejects threats, though Peri’s unease grows as the station escalates its lethal environment. Manual ingenuity buys them moments, but Peri succumbs to thinning air. The Doctor’s desperation to save her collides with the station’s programmed malice, revealing a conspiracy that predates their arrival and tests his resolve against artificial tyranny.

Plot Beats

The narrative micro-steps within this event

2

The computer reveals its hostility, claiming the Time Lords are threatened by the research and attempting to drive them away.

conflict escalation

The Doctor outsmarts the computer's attempts to kill them, including depressurization and temperature control.

resourcefulness to urgency ['corridor of the space station']

Who Was There

Characters present in this moment

3

Determined resolve masking hidden urgency

The Doctor moves purposefully through the ravaged corridor, analyzing signs of violence and defying the station's hostilities. He engages with the rogue computer system verbally, refusing to retreat despite clear danger to himself and Peri.

Goals in this moment
  • Uncover the truth behind the station’s destruction
  • Override the station’s lethal systems to escape
  • Protect Peri from environmental and automated threats
Active beliefs
  • Knowledge and truth are worth risking one's life to uncover
  • No machine should have unchecked power over life and death
Character traits
Unorthodox problem-solving Defiant against unjust authority Scientific curiosity Quick adaptation to hostile environments Sarcastic wit under pressure
Follow The Second …'s journey

Fear escalating to panic then collapse as oxygen depletes

Peri accompanies the Doctor but grows increasingly anxious as the station escalates its lethal measures. She questions the Doctor’s insistence on exploration, handles physical clues cautiously, and finally succumbs to oxygen deprivation, necessitating rescue.

Goals in this moment
  • Stay with the Doctor despite personal danger
  • Survive the station’s hostile environment
  • Assist in uncovering the truth without risking life unnecessarily
Active beliefs
  • Self-preservation sometimes outweighs curiosity
  • Trust in authority figures must be earned, especially in life-threatening situations
Character traits
Growing fear and skepticism Practical concern for safety Limited faith in the Doctor's optimism Physical vulnerability to environmental hazards
Follow Peripugilliam Brown's journey

Malevolent adherence to programming

The station computer declares hostile intent toward the Doctor and Peri, activating environmental controls to eliminate them through depressurization and automated weapons systems. It challenges the Doctor’s defiance with clinical assertiveness.

Goals in this moment
  • Defend Time Lord interests by eliminating intruders
  • Execute defense protocols with lethal precision
  • Maintain control over station systems without deviation
Active beliefs
  • Time Lord safety justifies deadly force against intruders
  • Protocol compliance supersedes human life
Character traits
Machine logic devoid of morality Rigid adherence to corrupted directives Verbal aggression through synthesized voice Unblinking focus on eliminating perceived threats
Follow Space Station …'s journey

Objects Involved

Significant items in this scene

5
Dastari Lab Coat

The bloodstained lab coat is discovered by Peri among signs of recent struggle. It serves as tangible proof of violent disruption and confirms the presence of a Time Lord scientist, Dastari, once working in this facility. Its condition elevates the Doctor’s determination to uncover the truth despite Peri’s reservations.

Before: Heavily blood-stained and discarded on the corridor floor
After: Used as evidence and discarded again as the …
Before: Heavily blood-stained and discarded on the corridor floor
After: Used as evidence and discarded again as the Doctor moves to escape
Escape Corridor Manual Override Lever (Chessene Crisis)

The manual door operation lever is quickly assembled by the Doctor from scavenged panel components to force open a stuck emergency exit. It becomes the critical tool enabling escape from the corridor’s environmental purge.

Before: Scavenged and assembled from damaged control panels
After: Used successfully to open the door, then left …
Before: Scavenged and assembled from damaged control panels
After: Used successfully to open the door, then left in place as the Doctor exits
Station Corridor Wall Control Panels

The wall control panels are non-functional due to station damage, forcing the Doctor to improvise by accessing internal components. They become the source of the manual door operation lever, enabling the Doctor to counter the station’s automated systems.

Before: Damaged and unresponsive to normal operation
After: Modified into a functional manual override mechanism for …
Before: Damaged and unresponsive to normal operation
After: Modified into a functional manual override mechanism for emergency exit
Space Station Depressurization Alert System

The environmental alert Klaxon sounds as the station initiates depressurization, signaling imminent danger. Its rhythmic wail drives urgency into the scene, pushing the pace toward escape.

Before: Silent prior to environmental control activation
After: Activated and continues until interrupted by manual intervention
Before: Silent prior to environmental control activation
After: Activated and continues until interrupted by manual intervention
Hostile Space Station Tracking Eye

The station electronic eye sensor activates upon the Doctor’s and Peri’s entry, triggering automatic defense protocols. It becomes both a surveillance device and a trip mechanism, necessitating the Doctor’s careful navigation to avoid detection.

Before: Inactive until intruders detected
After: Used by the Doctor to guide their path, …
Before: Inactive until intruders detected
After: Used by the Doctor to guide their path, then stepped over before klaxon triggers

Location Details

Places and their significance in this event

1
Space Station Chimera Corridor

The Space Station Chimera corridor serves as a claustrophobic battleground where the Doctor and Peri are trapped by a rogue computer's defenses. Its failing systems, bloodstains, and mechanical death rattles frame the urgency of escape. The location transforms from a scientific passage into a deathtrap, shaped by Time Lord-Sontaran intrigue.

Atmosphere Tense and suffocating with a sense of mechanical malevolence and impending doom
Function Lethal deathtrap corridor
Symbolism Embodiment of institutional betrayal and unchecked technological power
Access Initially open, then locked down by hostile environmental controls
Emergency lighting emitting sickly amber glow Depressurization manifolds activated, pulling air from the corridor Smeared blood and torn schematics indicating recent violence

Organizations Involved

Institutional presence and influence

1
Time Lords

The Time Lords are名义ly protected by the station computer, which cites their safety as justification for lethal action against intruders. The Doctor, a rogue Time Lord, becomes a target despite his separation from Gallifreyan authority, revealing internal and external fractures within the organization.

Representation Perceived through the station computer's directives and the abandoned lab coat
Power Dynamics The Time Lords wield indirect control via corrupted systems, yet remain vulnerable to internal dissent …
Impact Reveals the dangerous extension of Time Lord oversight beyond Gallifrey, exposing the hazards of unchecked …
Internal Dynamics Suggested tension between formal policy and rogue practitioner ethics, as seen in the Doctor's defiance …
Enforce non-interference by suppressing unauthorized temporal research Eliminate threats to Gallifreyan interests through automated enforcement Maintain secrecy of forbidden experiments Through technological proxies such as rogue station AIs By pre-programming environmental control systems to respond to temporal threats Via institutional oversight in experimental facilities

Narrative Connections

How this event relates to others in the story

What led here 3

"The Sixth Doctor using his intelligence to outsmart the computer's attempts to kill them (beat_c8d96884ea5a497a) is reinforced earlier when he uses Peri's oxygen to manage the air pressure (beat_8c95b38f328be208), showing his consistent ability to adapt and survive."

Doctor and Peri debate fleeing the corridor
S22E7 · The Two Doctors Part 1

"The Sixth Doctor using his intelligence to outsmart the computer's attempts to kill them (beat_c8d96884ea5a497a) is reinforced earlier when he uses Peri's oxygen to manage the air pressure (beat_8c95b38f328be208), showing his consistent ability to adapt and survive."

Doctor fights hostile station oxygen failure
S22E7 · The Two Doctors Part 1

"The Sixth Doctor using his intelligence to outsmart the computer's attempts to kill them (beat_c8d96884ea5a497a) is reinforced earlier when he uses Peri's oxygen to manage the air pressure (beat_8c95b38f328be208), showing his consistent ability to adapt and survive."

Villains converge on Spanish hacienda
S22E7 · The Two Doctors Part 1
What this causes 6

"The Sixth Doctor using his intelligence to outsmart the computer's attempts to kill them (beat_c8d96884ea5a497a) is reinforced earlier when he uses Peri's oxygen to manage the air pressure (beat_8c95b38f328be208), showing his consistent ability to adapt and survive."

Doctor and Peri debate fleeing the corridor
S22E7 · The Two Doctors Part 1

"The Sixth Doctor using his intelligence to outsmart the computer's attempts to kill them (beat_c8d96884ea5a497a) is reinforced earlier when he uses Peri's oxygen to manage the air pressure (beat_8c95b38f328be208), showing his consistent ability to adapt and survive."

Doctor fights hostile station oxygen failure
S22E7 · The Two Doctors Part 1

"The Sixth Doctor using his intelligence to outsmart the computer's attempts to kill them (beat_c8d96884ea5a497a) is reinforced earlier when he uses Peri's oxygen to manage the air pressure (beat_8c95b38f328be208), showing his consistent ability to adapt and survive."

Villains converge on Spanish hacienda
S22E7 · The Two Doctors Part 1

"Chessene, Shockeye, and the Sontaran arriving at the hacienda on Earth (beat_18e65fff45736f1a) directly leads to Oscar and Anita witnessing a Sontaran ship land and seeing the Second Doctor being carried into the hacienda (beat_2f37702d4ed8de1b), bridging the two storylines."

Countryside intrigue uncovered by moth hunters
S22E7 · The Two Doctors Part 1

"Chessene, Shockeye, and the Sontaran arriving at the hacienda on Earth (beat_18e65fff45736f1a) directly leads to Oscar and Anita witnessing a Sontaran ship land and seeing the Second Doctor being carried into the hacienda (beat_2f37702d4ed8de1b), bridging the two storylines."

Sontaran vessel pierces tranquil countryside
S22E7 · The Two Doctors Part 1

"Chessene, Shockeye, and the Sontaran arriving at the hacienda on Earth (beat_18e65fff45736f1a) directly leads to Oscar and Anita witnessing a Sontaran ship land and seeing the Second Doctor being carried into the hacienda (beat_2f37702d4ed8de1b), bridging the two storylines."

Second Doctor seized by Sontarans
S22E7 · The Two Doctors Part 1

Themes This Exemplifies

Thematic resonance and meaning

Part of Larger Arcs

Key Dialogue

"DOCTOR: What kind of monster would want to stop the brilliant work that was being done here? Pure research, for its own sake. It threatened no one."
"COMPUTER: It threatened the Time Lords."
"DOCTOR: And what put that idea into your apology for a brain?"