Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Cybermen revelation halts flirtation
S6E15
·
The Invasion Part 5
To
Doctor reveals Cybermen sewer threat
S6E15
·
The Invasion Part 5
Why These Connect
The narrative assertion
"The reveal that Vaughn helps the Cybermen and the idea of the space radio transmitter directly leads the Doctor to seek the transmitter radio given to Jamie to examine it more closely."
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.