Doctor Who (2005) (2005)

S07E04 The Power of Three

The Doctor and the Ponds confront a bizarre invasion when millions of ominous black cubes descend upon Earth overnight, resembling gifts from the heavens. But what do they contain, what purpose do they serve, and who is the mastermind behind this phenomenon? As world leaders scramble for answers, it falls to the Doctor to uncover the truth behind this enigma.