Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Experimenting with the makeshift transmitter
S9E10
·
The Sea Devils Part 2
To
Helicopter answers the doctored signal
S9E10
·
The Sea Devils Part 2
Why These Connect
The narrative assertion
"The successful transmission of the distress signal via the makeshift transmitter brings the helicopter to rescue the Doctor and Jo, shifting the immediate conflict from isolation on the fort to a glimmer of hope and rescue."
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.