• falls exactly on a Doctor Who episode
• falls during the New era's season 7
• features the 11th Doctor (Matt Smith, 2010-13)

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.

Writer: Chris Chibnall
Director: Douglas Mackinnon

More information at Wikipedia.