Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"Chang's attempted ambush at Litefoot's house (E23) leads to his later revelation of Weng-Chiang's fortress while dying in the opium den (E25)."
inferred by llm_cross_episode_arc
Why This Matters Across Episodes
The longer arc this connection carries
Chang's confrontation with the Doctor and Leela in E23 sets up his later betrayal and revelation in E25. The unresolved tension from E23 (Chang's targeting of the Doctor) pays off in E25 when Chang, cornered, provides critical information about Weng-Chiang's hideout.
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.