Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Depth charges trigger Zygon ship's launch
S13E3
·
Terror of the Zygons Part 3
To
Zygons abduct the Doctor and reveal invasion plan
S13E3
·
Terror of the Zygons Part 3
Why These Connect
The narrative assertion
"The activation of the dynacon thrust leads directly to the Zygon spaceship beginning its ascent from Loch Ness, transforming the threat into an imminent global danger and raising the stakes to their highest point."
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.