An eleventh Doctor adventure, featuring the Doctor as played by Matt Smith
and his companions Amy and Rory. The winter festival is approaching for the
hardy colony of Morphans, but no one is in the mood to celebrate. They’re
trying to build a new life on a cold new world, but each year gets harder and
harder. It's almost as if some dark force is working against them. Then three
mysterious travelers arrive out of the midwinter night, one of them claiming to
be a doctor. Are they bringing the gift of salvation or doom? And what else
might be lurking out there, about to wake up?