Fabula
S2E16 · The Web Planet

Ian spots movement in the acid pool

After discovering an ancient pyramid and testing a suspicious pool with Ian’s tie—revealing it to be corrosive acid—the Doctor dismisses Ian’s urgent claim of seeing movement beneath the surface. Ian insists he glimpsed a light breaking the water, but the Doctor, fixated on the interference signal, accuses him of seeking petty revenge for the ruined tie. The Doctor’s refusal to investigate the pool’s anomaly foreshadows the planet’s hidden threats, while Ian’s frustration underscores the tension between observation and denial. The moment escalates when a mega-ant’s sound cues, reinforcing the planet’s hostility and the Doctor’s misplaced priorities. This exchange highlights the Doctor’s scientific tunnel vision and Ian’s role as the pragmatic observer, whose warnings will later prove prescient.

Plot Beats

The narrative micro-steps within this event

2

Ian spots something moving in the acid pool; he reports that he saw a light break the surface, but the Doctor dismisses it as revenge for the ruined tie and insists they focus on the interference.

alarm to skepticism

The mega-ant sound starts up, the Doctor dismisses Ian's claim; and continues to focus on the source of the interference. The Doctor suggests that they continue to try investigating.

frustration to determination

Who Was There

Characters present in this moment

2

Frustrated and concerned, feeling dismissed and undervalued by the Doctor’s condescension.

Ian, frustrated and insistent, argues that he saw a light break the surface of the acid pool, suggesting hidden life beneath. He throws the remnants of his dissolved tie into the pool, dislodging a stone that triggers a mega-ant’s brief appearance. His tone is urgent and defensive, as he tries to convince the Doctor of the pool’s danger, but the Doctor dismisses him. Ian’s emotional state is a mix of concern and frustration, heightened by the mega-ant’s ominous sound.

Goals in this moment
  • Convince the Doctor that the acid pool hides a threat
  • Protect himself and the group from unseen dangers
Active beliefs
  • The acid pool contains a living creature or creatures
  • The Doctor is underestimating the immediate danger
Character traits
Observant Frustrated Defensive Insistent Pragmatic
Follow Ian Chesterton's journey

Frustrated but determined, masking his concern with a veneer of authority and scientific detachment.

The Doctor, focused on the interference signal, dismisses Ian’s claim of seeing movement in the acid pool as petty revenge for the ruined tie. He tests the pool’s acidity with Ian’s tie-belt, confirming its corrosive nature, but remains fixated on his scientific mission. His tone is condescending yet pragmatic, and he reacts to the mega-ant sound with urgency, redirecting Ian’s attention back to the interference signal.

Goals in this moment
  • Identify the source of the interference signal trapping the TARDIS
  • Protect Ian from unnecessary risks (e.g., the acid pool)
Active beliefs
  • Ian’s observation is a reaction to the ruined tie, not a genuine threat
  • The interference signal is the primary danger requiring immediate attention
Character traits
Scientifically driven Condescending Dismissive of intuition Pragmatic Focused on the mission
Follow The First …'s journey

Objects Involved

Significant items in this scene

4
Corrosive Acid Pool

The corrosive acid pool serves as a lethal and mysterious element in the scene, dissolving Ian’s tie-belt instantly upon contact. It becomes a focal point of tension as Ian insists he saw movement beneath its surface, suggesting hidden life. The pool’s corrosive properties are confirmed when the Doctor tests it, and its threat is further emphasized when a stone dislodged by Ian’s discarded tie triggers a mega-ant’s brief appearance. The pool symbolizes the planet’s unseen dangers and the friction between observation and denial.

Before: A small, suspicious pool of liquid on the …
After: The pool remains a threat, now confirmed to …
Before: A small, suspicious pool of liquid on the planet’s surface, appearing deceptively calm but emitting a faint, eerie glow.
After: The pool remains a threat, now confirmed to be corrosive and potentially inhabited by mega-ants. Its surface is disturbed by the stone thrown in by Ian, revealing hidden movement beneath.
Ian's Tie-Belt

Ian’s Coal Hill School tie-belt is used by the Doctor to test the acidity of the pool, dissolving instantly upon contact. The tie becomes a symbolic casualty of the Doctor’s scientific approach, sparking frustration in Ian. When Ian throws the remnants of the tie back into the pool, it dislodges a stone, which triggers the brief appearance of a mega-ant. The tie’s destruction highlights the planet’s hostility and the tension between the Doctor and Ian.

Before: Wrapped around Ian’s waist as a makeshift belt, …
After: Dissolved into the acid pool, with only remnants …
Before: Wrapped around Ian’s waist as a makeshift belt, intact and functional.
After: Dissolved into the acid pool, with only remnants left, now serving as a trigger for the mega-ant’s appearance.
Mega-Ant Sound

The mega-ant sound erupts suddenly after the stone is thrown into the acid pool, signaling the presence of giant, unseen creatures. The sound is ominous and jarring, reinforcing the planet’s hostility and the immediate danger the group faces. It serves as a foreshadowing element, hinting at the mega-ants’ role as a major threat in the episode. The sound cuts through the tension between the Doctor and Ian, redirecting their focus to the larger peril.

Before: Silent, with no indication of the mega-ants’ presence.
After: The sound has been heard, now a confirmed …
Before: Silent, with no indication of the mega-ants’ presence.
After: The sound has been heard, now a confirmed threat looming over the group.
Stone Thrown into Corrosive Acid Pool

The stone, dislodged by Ian when he throws the remnants of his dissolved tie into the acid pool, plops into the liquid and triggers a ripple effect. This disturbance causes a mega-ant to briefly surface with a light flash before ducking out of sight. The stone acts as a catalyst, revealing the hidden threat beneath the pool’s surface and foreshadowing the planet’s dangerous inhabitants.

Before: A loose stone near the edge of the …
After: Fallen into the acid pool, now part of …
Before: A loose stone near the edge of the acid pool, unnoticed until Ian’s actions dislodge it.
After: Fallen into the acid pool, now part of the disturbed surface where the mega-ant briefly appeared.

Location Details

Places and their significance in this event

1
Barren Lifeless Planet (The Web Planet)

The barren planet surface serves as the primary setting for this event, characterized by its desolate landscape, thin toxic atmosphere, and eerie subsonic hum. The location is a battleground of tension, where the Doctor and Ian investigate the acid pool and the ancient pyramid. The planet’s hostility is emphasized by the corrosive pool, the mega-ant sound, and the looming threat of unseen creatures. The environment is stark and unforgiving, reinforcing the group’s vulnerability and the urgency of their mission.

Atmosphere Tense and oppressive, with a sense of impending danger. The thin atmosphere and subsonic hum …
Function Battleground and exploration site, where the group investigates the planet’s mysteries and faces its hidden …
Symbolism Represents the unknown and the dangers of uncharted territory, both physically and metaphorically. The planet’s …
Access Open but hazardous, with no clear paths or safe zones. The group must navigate carefully …
Thin, toxic atmosphere with a persistent subsonic hum Barren, desolate landscape with loose stones and ancient ruins Corrosive acid pool emitting a faint, eerie glow Ominous mega-ant sound erupting suddenly

Narrative Connections

How this event relates to others in the story

What this causes 4
Causal medium

"The Doctor dismisses Ian's concerns and continues to investigate. Rushing around in the environment leads to Ian being caught in a net trap."

Ian trapped in alien snare
S2E16 · The Web Planet
Causal medium

"The Doctor dismisses Ian's concerns and continues to investigate. Rushing around in the environment leads to Ian being caught in a net trap."

Ian’s trapped plea for the Doctor’s return
S2E16 · The Web Planet

"Something is moving in the acid pool and then Ian is caught in a trap, hinting at threats beneath the surface and the dangers of the planet."

Ian trapped in alien snare
S2E16 · The Web Planet

"Something is moving in the acid pool and then Ian is caught in a trap, hinting at threats beneath the surface and the dangers of the planet."

Ian’s trapped plea for the Doctor’s return
S2E16 · The Web Planet

Part of Larger Arcs

Key Dialogue

"IAN: Doctor! There! There's something in there! I saw a light, it broke the surface."
"DOCTOR: Now, my young man. If this is your idea of revenge for that tie then I think it's a pretty poor effort."
"IAN: Doctor, this is not revenge, I—"