"Did you miss me?" "Christmas isn’t silent when the Sycorax invade."

Doctor Who: The Christmas Invasion

The newly regenerated 10th Doctor falls to Earth on Christmas Eve bringing the Doctor home to Rose's family. But while his regenerated body lies comatose, Santa-shaped assassins and deadly Christmas trees herald the approach of a terrible danger from the stars. The Sycorax are coming, and without the Doctor, the human race is helpless.