Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"The Doctor's need for a Zero Room (identified in Episode 1) directly causes Nyssa and Tegan's desperate search for alternative stabilization environments in Episode 2, leading to Castrovalva."
inferred by llm_cross_episode_character
Why This Matters Across Episodes
The longer arc this connection carries
The unresolved state of the Doctor's regeneration in Episode 1 necessities the search for a Zero environment (or equivalent) in Episode 2. This drives the plot forward, cementing the Doctor's vulnerability and the companions' proactive solutions.
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.