Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"Steven and Sara's debate about rescuing the Doctor in Episode 20 (despite the risk) leads to the Doctor emerging to save them in Episode 21, directly enabling his sacrifice to activate the time destructor."
inferred by llm_cross_episode_character
Why This Matters Across Episodes
The longer arc this connection carries
The unresolved question of the Doctor's whereabouts and safety in Episode 20 is resolved in Episode 21 when they are retrieved and then endangered by the Daleks, prompting the Doctor's heroic intervention.
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.