Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
TARDIS lands unnoticed in Arctic storm
S4E5
·
The Tenth Planet Part 1
To
Sergeant Fires on Silver Giants
S4E5
·
The Tenth Planet Part 1
Why These Connect
The narrative assertion
"The Sergeant's initial observation of the TARDIS materializing leads directly to his confrontation with the aliens who emerged from the flying saucer. The TARDIS's arrival sets the stage for the alien landing and attack."
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.