Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Samantha defies paralysis for control
S4E34
·
The Faceless Ones Part 4
To
Jamie disables laser trap with mirror
S4E34
·
The Faceless Ones Part 4
Why These Connect
The narrative assertion
"The realization of the laser threat forces the Doctor to come up with a plan to escape, using Samantha's mirror."
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.