The transition episode between S2 and S3. The Doctor is surprised to find bride-to-be Donna Noble whisked into the Tardis by some unknown energy. Having recently lost Rose, it's nice to have company but he returns her to Earth. On landing it's clear that something is going on; those Santas are back. The Doctor and Donna battle the Empress of Racnoss. They eventually manage to destroy the Empress and her brood. The Doctor cannot persuade Donna to be his companion and the rest of the story is.....S3

David Tennant / The Doctor, Catherine Tate / Donna Noble, Sarah Parish / The Empress, Don Gilet / Lance Bennett, Howard Attfield / Geoff Noble, Jacqueline King / Sylvia Noble, Trevor Georges / Vicar, Glen Wilson / Taxi Driver, Krystal Archer / Nerys, Rhodri Meilir / Rhodri, Zafirah Boateng / Little Girl, Paul Kasey / Robot Santa.