The Doctor and Clara face their Last Christmas. Trapped on an Arctic base, under attack from terrifying creatures, who are you going to call? Santa Claus!

They’ve swapped Christmas – again. Can Hayley and James’ relationship survive another turbulent family Christmas or has their future together gone off-piste?!

Students Hayley and James are young and in love. After saying goodbye for Christmas at a London train station, they both make the same mad split-second decision to swap trains…