Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"Polly's survival and reunion with the group in Episode 20 leads directly to her strategic use of the voice-distorting device to help the Doctor escape in Episode 21."
inferred by llm_cross_episode_character
Why This Matters Across Episodes
The longer arc this connection carries
Polly's transformation trauma becomes the catalyst for her ingenuity in creating the voice distraction, showcasing the companions' evolving abilities to adapt to alien environments and threats.
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.