Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor seeks Brigadier's memory of past
S20E10
·
Mawdryn Undead Part 2
To
Doctor alerts Brigadier about Turlough’s disappearance
S20E10
·
Mawdryn Undead Part 2
Why These Connect
The narrative assertion
"The Doctor and Brigadier’s conversation about the TARDIS being in the wrong time zone leads directly to a phone call confirming Turlough’s disappearance from the sickbay, prompting concern over his possible re-materialization elsewhere."
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.