The Power of Three

Name: The Power of Three
Director: Douglas Mackinnon
Released: 2012-09-22
Duration: 42 min
Rating: 7.2
Cast: Arthur Darvill, Steven Berkoff, Mark Williams, Jemma Redgrave, Selva Rasalingam

S7 E4 September 22, 2012 0h 42m ★ 7.2

Source:

Overview

The Doctor and the Ponds puzzle an unlikely invasion of Earth, as millions of sinister black cubes arrive overnight, almost like presents falling from the sky. But what are they, what’s inside them and most importantly, who sent them? With the international community at a loss, it’s left to the Doctor to unearth who is behind the mystery.