Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Hatch closure traps Cybermen and allies
S5E3
·
The Tomb of the Cybermen Part 3
To
Victoria sacrifices herself to save the Doctor
S5E3
·
The Tomb of the Cybermen Part 3
Why These Connect
The narrative assertion
"Victoria notices Hopper's smoke grenades and prompts Jamie and Hopper to help Parry out of the chamber, setting the stage for the subsequent struggle when a Cyberman grabs the Doctor's leg."
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.