Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Thals reroute as ice advances
S10E17
·
Planet of the Daleks Part 3
To
Tunnel floods as escape route cuts off
S10E17
·
Planet of the Daleks Part 3
Why These Connect
The narrative assertion
"The liquid ice filling the tunnel forces the Thals to seek an alternative route, leading them to discover the grill that connects to the city interior."
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.