Season 7, Episode 4 The Power of Three

First Aired: September 22, 2012

Millions of sinister black cubes fall from the sky, and the Doctor worries about an invasion of Earth.

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  • Premiered: March 26, 2005
  • Rating: TV-PG
  • Premise: Following the adventures of a time-traveling alien called "The Doctor" and his human companions as they deal with crises set on Earth and other worlds. (more)

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