Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"Polly's betrayal of Ben in Episode 3 (her locking the escape route and summoning WOTAN's enforcers) directly leads to Ben's urgent behavior in Episode 4, where he searches frantically for Polly and warns the Doctor about her disappearance."
inferred by llm_cross_episode_arc
Why This Matters Across Episodes
The longer arc this connection carries
This connection carries the core conflict arc forward—Ben's growing awareness of Polly's brainwashing and his desperate attempts to rescue her. The source event in Episode 3 creates the immediate motivation for Ben's actions in Episode 4, stitching the two episodes together into a coherent rescue plot.
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.