As Donna is about to marry her boyfriend Lance on Christmas Eve, she suddenly finds herself on board the TARDIS.
As the Doctor tries to get Donna to the church on time, the alien Empress of the Racnoss watches closely from the throne in her spaceship above. How is Donna the key to an ancient plot to destroy the Earth? With time running out, can the Doctor solve the puzzle, defeat the Empress and stop her army of robot Santas?
- Cat. No.