Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor commands door opening under attack
S15E24
·
The Invasion of Time Part 4
To
Doctor and K9 neutralize Vardan source
S15E24
·
The Invasion of Time Part 4
Why These Connect
The narrative assertion
"K9’s ready nod and triple probe extension confirm the system is primed for the final attack. The Doctor’s observation cues K9 to deliver the modulation rejection pattern moments later—directly causing the Vardans’ vanishment."
About Causal Connections
A directly causes B. The first event sets forces in motion that produce the second. These are the load-bearing connections of plot—remove one and the story structure collapses.