Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor uncovers the Rutan’s deadly relay
S15E4
·
Horror of Fang Rock Part 4
To
Doctor forces Rutan to reveal true form
S15E4
·
Horror of Fang Rock Part 4
Why These Connect
The narrative assertion
"The Doctor and Leela's discussion about the Rutan's shape-shifting abilities and need to study human life patterns directly leads to the Doctor confronting the Rutan, forcing it to reveal its true form."
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.