Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Brigadier confronts Doctor’s alien coma
S7E2
·
Spearhead from Space Part 2
To
Brigadier’s Failed TARDIS Key Attempt
S7E2
·
Spearhead from Space Part 2
Why These Connect
The narrative assertion
"The key Henderson finds becomes the key the Brigadier attempts to use on the TARDIS."
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.