Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Scientists Reveal Their Catastrophic Experiment
S4E38
·
The Evil of the Daleks Part 2
To
Waterfield reveals Dalek blackmail and trap
S4E38
·
The Evil of the Daleks Part 2
Why These Connect
The narrative assertion
"Maxtible and Waterfield explain their experiments, which caused the portal to open. Waterfield then reveals the creatures forced him to lure the Doctor into a trap (beat_0d873b88e4141528) by stealing his box."
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.