Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor’s Failed Escape and Forced Alliance
S7E3
·
Spearhead from Space Part 3
To
Doctor’s Escape Attempt Fails
S7E3
·
Spearhead from Space Part 3
Why These Connect
The narrative assertion
"Liz giving the Doctor the Tardis key allows the Doctor attempts to dematerialise but fails with a small explosion and smoke (beat_0223f5cfe3cf08ed), indicating the Doctor's escape attempt has been thwarted."
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.