Doctor Who
S20E23
· The Five Doctors Part 1

Doctors and Brigadier press into Dark Tower depths

The Second Doctor and Brigadier Lethbridge-Stewart advance through the hazardous tunnels beneath the Dark Tower, their progress dictated by the Doctor’s urgent need to reach the summit before the convergence of his five incarnations turns catastrophic. The Brigadier’s exhaustion and unease contrast with the Doctor’s brisk reassurance, while the distant roar of an unseen predator underscores the perilous hunt they’ve become part of. Their dialogue frames a moment of fragile camaraderie amid gathering dread, their steps carrying them steadily toward the clash that awaits at the heart of the structure. The tunnel’s elevation hints at their destination, but the true nature of what follows remains obscured in the shadows ahead. key_dialogue: [ DOCTOR 2ND: Come along, Brigadier, come along. This way. ]

Plot Beats

The narrative micro-steps within this event

3

The Second Doctor and Brigadier navigate through tunnels, discussing their progress and the Brigadier's discomfort. The Doctor reassures him they are nearing the Tower.

banter to concern ['tunnels']

A loud roar is heard, causing the Brigadier to express alarm and ask what the noise is. The Doctor identifies it as something large, fierce, and hungry.

apprehension to heightened tension ['tunnels']

The Doctor urges the Brigadier to proceed cautiously as they face the unknown threat.

tension to resolve ['tunnels']

Who Was There

Characters present in this moment

2
Brigadier Alistair Lethbridge-Stewart
Brigadier
 primary

Drained resentment toward the physical demands of the mission, overlaid with lingering loyalty and quiet alarm at the unseen threat.

The Brigadier struggles through the cramped, waterlogged passage, his breathing labored and words clipped with frustration. His fatigue is palpable, each step a negotiation between obligation and capacity, yet his latent service instincts still guide his reluctant compliance.

Goals in this moment
  • • Physically endure the hazardous tunnel to remain useful to the Doctor
  • • Voice concerns to ensure the mission acknowledges real dangers rather than dogged optimism
Active beliefs
  • • Age reduces his reliability in extreme environments
  • • The Doctor’s choices often expose others to unnecessary peril
Character traits
Exhausted Skeptical Uncharacteristically candid Determined by duty
Follow Brigadier Alistair …'s journey
The Fifth Doctor
Time Lord
 primary

Superficially composed but internally driving forward with disciplined determination to keep the mission on track despite visible peril.

The Second Doctor strides purposefully through the slick tunnels ahead of the Brigadier, his urgency cutting through the dim torchlight and rising water underfoot. Though physically compact, his presence commands the space, his brisk tone masking an unwritten layer of resolve not entirely shared with his companion.

Goals in this moment
  • • Reach the Dark Tower’s summit before the convergence of his five selves becomes irreversible
  • • Maintain the Brigadier’s momentum despite his evident exhaustion
Active beliefs
  • • The Doctor’s survival hinges on timely intervention by his future selves
  • • Leadership requires absolute clarity even when the environment is hostile
Character traits
Urgent Optimistic Taking charge Minimizing danger
Follow The Fifth …'s journey

Location Details

Places and their significance in this event

2
Dark Tower of Rassilon (with Metallic Corridor Component)

The Dark Tower looms above the cave entrance, its jagged silhouette visible via the tunnel’s ascent slope, a constant gravitational pull for the Doctor’s march forward. The tower’s ominous presence is felt even underground—its shadow sensed in the strained light, its purpose a given, not questioned.

Atmosphere Ominous and inescapable, the tower’s looming mass sucking the oxygen from the air and focusing …
Function Ultimate destination and external antagonist whose gravitational pull dominates the travelers’ will to progress
Symbolism Embodiment of Time Lord power and fate, drawing the Doctor toward a predetermined collision with …
Access No direct entry from cave; must traverse tunnel before facing the tower’s doors
Spiraling staircase clinging to the obsidian exterior is faintly implied by the tunnel’s ascent Shadow moves against sunlight, reinforcing the tower’s unnatural, time-warping nature
Waterlogged Cave Entrance at the Base of the Dark Tower

The narrow cave entrance funnels them into a descending yet steadily rising tunnel drenched by trickling water and ankle-deep runoff. The slick rock walls force slow, deliberate progress as the ceiling steadily climbs toward the Dark Tower above, the air thick with the scent of damp earth and the amplified echo of their cautious footsteps.

Atmosphere Clammy and oppressive, charged with anticipation and the low rumble of unseen predatory movement beyond …
Function Conduit to the Dark Tower’s summit, deliberately restrictive to amplify tension and force cooperative movement
Symbolism Represents the bridge between safety and an inevitable confrontation with the Doctor’s own legacy and …
Access Single-file passage, no immediate exits, visibility limited to flickering torchlight
Unstable footing from moving water overlaying a film of mud and slick stone Distant but growing roar of something large and hostile echoing through the tunnel

Narrative Connections

How this event relates to others in the story

What led here 1
Thematic Parallel medium

"The Third Doctor explicitly calling the destruction of Bessie a trap (beat_c7237504d0c181fc) parallels the Second Doctor and Brigadier being hunted by a Yeti, both illustrating the Death Zone's deadly deceptions."

Doctor and Sarah confirm Bessies trap
S20E23 · The Five Doctors Part 1