Callback
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor’s identity tested by companions
S4E9
·
The Power of the Daleks Part 1
To
Doctor identifies Dalek alloy and triggers memory
S4E9
·
The Power of the Daleks Part 1
Why These Connect
The narrative assertion
"The metal fragment discovered in the TARDIS returns when the Doctor examines a similar piece from the capsule, triggering the memory of "extermination." The callback is strong as it links the beginning of the episode directly to the central mystery."
About Callback Connections
B explicitly references A. A later moment deliberately echoes an earlier one, creating a sense of narrative completeness and rewarding memory.