Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor realizes trap as Sarah vanishes
S12E5
·
The Ark in Space Part 1
To
Doctor uncovers humanitys frozen ark
S12E5
·
The Ark in Space Part 1
Why These Connect
The narrative assertion
"The Doctor and Harry's shared concern for Sarah's safety after her disappearance drives them deeper into the station to find the cryogenic chamber, where they discover the preserved humans. Their emotional investment directly propels the thematic and plot resolution."
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.