Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"The Nemesis battle at the crash site sets up the warehouse showdown where the Doctor must use the Nemesis weapon (via the rocket sled) to stop the Cybermen."
inferred by llm_cross_episode_arc
Why This Matters Across Episodes
The longer arc this connection carries
The failure of Cybermen to seize control post-crash battle (Part 2) creates the conditions for their regrouping and final confrontation (Part 3). The Doctor's strategic use of the Nemesis in the warehouse is a direct consequence of the battlefield's unresolved chaos.
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.