Earth is suddenly visited by millions of small black cubes of unknown origin. The Doctor joins Amy, Rory and Rory's father, Brian, to help discover what these cubes bring for humanity.
Did You Know?
Amy and the Doctor's conversation outside the Tower of London could not be filmed at the genuine location due to the London Olympics, so it was shot on studio in Cardiff and the live action was combined with other footage to create the illusion. See more
The Doctor jumps, and the zapping sound is heard before Amy touches the Doctor with the defibrillator paddles. See more
[on the TV
I sent you out to sell as many cubes as you could in 24 hours. And look at you, you've made a right hash of it, haven't you? Well, Craig, you're fired.
In theme with the story, the Doctor Who logo is filled with a faux-3D pattern of the black cubes. See more
Spoofs The Apprentice
Doctor Who Theme
Written by Ron Grainer
Arranged by Murray Gold
Performed by BBC National Orchestra of Wales See more