Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
K9 asserts independence in lab
S17E20
·
The Horns of Nimon Part 4
To
Doctor reverses tunnel to trap the Nimons
S17E20
·
The Horns of Nimon Part 4
Why These Connect
The narrative assertion
"K9's insistence on being removed from the surface and his escape to the Doctor directly leads to his assignment to modify the space-time tunnel controls. This continuity shows the direct impact of K9's growing independence."
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.