Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor harnesses K9 to save the Argo
S15E17
·
Underworld Part 1
To
Doctor learns Minyans have reached their end
S15E17
·
Underworld Part 1
Why These Connect
The narrative assertion
"The Minyan ship's struggle with the Charybdis nebula's gravitational pull directly precipitates the Doctor and Leela's emergence from the TARDIS to offer assistance, driving the central interaction."
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.