Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor summoned to emergency mission
S9E15
·
The Mutants Part 1
To
Intruders exposed on Skybase One
S9E15
·
The Mutants Part 1
Why These Connect
The narrative assertion
"The Doctor and Jo's decision to depart in the TARDIS leads directly to their materialization in the storage room on Skybase One, initiating their entanglement in the Solos political crisis."
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.