Victorian London, its snowing and two boys are futilely sweeping snow from the workhouse yard. They give up and build a snowman, but then it begins to bleed. They flee and one runs into the arms of a strange troll like man who takes him to meet Madame Vastra, the fabled Lizard Woman of Paternoster Row.
But these monsters are the good guys and in fact it is one of the great and good of Victorian society that is bringing death to the streets. As in all great Dr Who adventures there is alien involvement and impending doom for mankind.
A really entertaining spin off from 'The Snowmen' Dr Who episode, featuring the Siluran Madame Vastra who first appeared in 'A Good Man Goes to War' and the Sontaran Strax who is simply hilarious.
