Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"The Doctor's revelation about Mavic Chen's betrayal (in Episode 12) sets up Chen's later retaliation by exposing Dalek operational failure (in Episode 15)."
inferred by llm_cross_episode_arc
Why This Matters Across Episodes
The longer arc this connection carries
The Doctor's accusation in Episode 12 directly motivates Chen's need to prove his loyalty and assert his authority in Episode 15, escalating their precarious alliance.
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.