Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"Mavic Chen’s return with the taranium core in Ep 20 is the sole cause of the Time Destructor becoming operational in Ep 21. Its eventual burnout and destruction of the Daleks in Ep 21 is the direct consequence of Chen’s initial theft and return."
inferred by llm_cross_episode_arc
Why This Matters Across Episodes
The longer arc this connection carries
This is the linchpin of the entire arc. The taranium core from Ep 20 powers the Time Destructor, which ultimately self-destructs and annihilates the Daleks—completing Sara’s life’s work. The causal thread spans both episodes: acquisition → power → burnout → annihilation.
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.