Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Ambush and Mondas’ Collapse
S4E8
·
The Tenth Planet Part 4
To
Ben Lures Cybermen to Their Doom
S4E8
·
The Tenth Planet Part 4
Why These Connect
The narrative assertion
"Because the Doctor and Polly require saving, Ben engages with the communication unit in an attempt to free them from the Cybermen."
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.