Doctor Who - Season 4 Episode 17
Release Date: Dec 25, 2009
S04 E17Dec 25, 2009
Where to Watch Doctor Who Season 4 Episode 17
Christmas Eve, and the Doctor is reunited with Wilf, to face the return of an old enemy. Something terrible stalks the wastelands of London, while far away, the Immortality Gate reaches completion. But the warnings of the Ood signify an even greater danger, as the Doctor faces his darkest hour yet.