S16E20

Kroll rises as Swampie strikes Thawn

The control centre dissolves into chaos when Kroll emerges monstrous from the mud, its vast head looming over the refinery. Thawn is impaled by a Swampie’s spear, leaving the Doctor stunned and scrambling to process the sudden violence amid the larger peril. As Kroll’s tentacle crushes the structure, the Doctor tries to reason with Ranquin, whose desperate faith has blinded him to the creature’s true nature. This forces the Doctor to confront the cost of Ranquin’s fanaticism and the vulnerability of both human and Swampie lives caught in Kroll’s wrath.

Plot Beats

The narrative micro-steps within this event

Kroll rises from the mud, and the group realizes it is approaching. The Doctor and others discuss the creature's intentions.

fear and uncertainty ['mud', 'refinery']

Thawn is attacked by a Swampie, and Kroll surfaces near the refinery. The Doctor attempts to negotiate with Ranquin, who believes Kroll will not be denied.

heightened danger ['refinery']

Who Was There

Characters present in this moment

The Fourth Doctor

Science Officer

primary

Deflecting fear with humor while assessing the situation

Doctor tumbles into Ranquin’s arms as the refinery shudders, cracking jokes and trying to defuse the storm of destruction with sarcasm even as Kroll’s tentacle crushes the building around them.

Goals in this moment

• Prevent immediate destruction of the control centre
• Reason with Ranquin to halt futile appeals to Kroll

Active beliefs

• Kroll is a non-sentient hazard, not a deity
• Human and Swampie lives are equally worth protecting

Character traits

Impish wit under pressure Quick physical reflexes Unwavering focus on survival despite banter

Follow The Fourth …'s journey

Romana

Time Lady

primary

Professional detachment tempered by urgency

Romana quickly separates from the control centre chaos, moving down a passage to investigate what lies beyond while calling back to the Doctor, showing proactive curiosity about the outside threat.

Goals in this moment

• Gather information about the perimeter threat
• Reunite with the Doctor to coordinate next steps

Active beliefs

• Deduction is more reliable than blind faith
• Unity of action increases survival chances

Character traits

Pragmatic and direct Methodical in assessing surroundings Concerned about exploration despite peril

Follow Romana's journey

Supporting 1

Thawn

secondary

Rage replaced by shock and pain

Thawn is mid-accusation when a Swampie’s spear pierces him from behind, his ruthless command evaporating in an instant and leaving him twisted, gasping, and rapidly irrelevant amid the larger peril.

Goals in this moment

• Retain dominance over the refinery crew
• Eliminate perceived saboteurs (the Doctor and Fenner)

Active beliefs

• Order justifies any action
• Fear is the most effective tool in command

Character traits

Brutal authority masking deep insecurity Sudden loss of control Violent posture collapsing into agony

Follow Thawn's journey

Narrative Connections

How this event relates to others in the story

What this causes 3

Themes This Exemplifies

Thematic resonance and meaning

Part of Larger Arcs

Kroll's primal conflict with all other species as it follows its instinctual hunting patterns while being manipulated by human-machine interference, leading to catastrophic destruction

Key Dialogue

"RANQUIN: Many have died because of you, dryfoot. You have been promised to Kroll."

"DOCTOR: And does Kroll know that?"

"RANQUIN: Kroll is all-wise, all-seeing"