Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Tegan and Turlough discover TARDIS lockout
S21E7
·
Frontios Part 1
To
Acid jar sparks TARDIS repair plan
S21E7
·
Frontios Part 1
Why These Connect
The narrative assertion
"The jammed TARDIS interior door creates an urgent need for an alternative power source (the acid jar), driving the companions to retrieve it from the sealed research room. This mechanical failure becomes a central obstacle and motivator for the plot."
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.