Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Victoria sacrifices herself to save the Doctor
S5E3
·
The Tomb of the Cybermen Part 3
To
Hatch closure traps Cybermen and allies
S5E3
·
The Tomb of the Cybermen Part 3
Why These Connect
The narrative assertion
"A Cyberman grabs the Doctor leading to a struggle where Victoria hits the Cyberman to save the Doctor which causes Parry to ask if anybody is missing after the Cyberman's 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.