Amy Pond and Rory Williams are trapped on a crashing space liner, and the only way the Eleventh Doctor can rescue them is to save the soul of a lonely old miser. But is Kazran Sardick, the richest man in Sardicktown, beyond redemption? And what is lurking in the fogs of Christmas Eve?

Cast:Matt Smith, Karen Gillan, Arthur Darvill, Michael Gambon, Katherine Jenkins, Laurence Belcher,

Genre:Science Fiction, Drama,

country:United Kingdom,

Production:BBC Cymru Wales,