Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor and Sarah examine alien artifact
S13E13
·
The Android Invasion Part 1
To
Androids attack in quarry ambush
S13E13
·
The Android Invasion Part 1
Why These Connect
The narrative assertion
"The Doctor insisting on the importance of the egg-shaped artifact leads directly to the androids' attack in the quarry, as the characters take cover behind it during the firefight, establishing the artifact's role in the plot."
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.