Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"The companions' unity in carrying the Doctor to safety in Castrovalva's collapse (EP4) directly enables the Doctor's trust in splitting the team aboard the alien ship (EP5). Tegan and Nyssa's demonstrated capability to act decisively under pressure validates the Doctor's decision to prioritize investigation with Adric, leaving others 'safe' in the TARDIS."
inferred by llm_cross_episode_character
Why This Matters Across Episodes
The longer arc this connection carries
The Doctor's willingness to trust Tegan/Nyssa with his physical safety in EP4 logically extends to his confidence in leaving them in the TARDIS (EP5), despite their pragmatic frustrations. His delegation of leadership roles (e.g., carrying him vs. monitoring the TARDIS) reflects hardened trust in their reliability after Castrovalva.
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.