Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor confirms Cyberman threat; UNIT scrambles
S6E15
·
The Invasion Part 5
To
Team splits under UNIT surveillance pressure
S6E15
·
The Invasion Part 5
Why These Connect
The narrative assertion
"The Doctor and Brigadier discovering the trio have gone to the sewers has Jamie express apprehension about their plan, showing how much of a rush they were in to do this operation."
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.