Liverpool Sound and Vision Rating * * * *
Cast: Peter Capaldi, Jenna Coleman, Maisie Wiliams, Davis Schofield, Simon Lipkin, Ian Conningham, Tom Stourton, Alastair Parker, Murray McArthur, Barnaby Kay.
It is the ripples in time, the footprints in the sand that are able to be navigated without too much effect; it is the big things, the death of someone to who history might have forgotten and passed over for ever had it not been for The Doctor coming into their lives and persuading them, quite rightly, that they have a part to play in the way that the Universe evolves.