It's Christmas Eve, 1938, when Madge Arwell comes to the aid of an injured Spaceman Angel as she cycles home. He promises to repay her kindness - all she has to do is make a wish.
Matt Smith , Karen Gillan , Arthur Darvill , Claire Skinner , Holly Earl , Alexander Armstrong , Bill Bailey , Paul Bazely , Arabella Weir , Spencer Wilding
BBC Wales
