Title: Planet of the Dead
Episode: Season 4 Special
Original Airdate: Saturday April 11th, 2009
The Doctor meets Lady Christina de Souza, a young, athletic resourceful thief eager to keep one step ahead of just about anyone who tries to catch her. When the two hitch a fateful ride on a double-decker bus, they and several other passengers are transported to a distant alien planet where terrifying insect-like aliens and Christina's dark secrets may prove an emotional drain on the Doctor in his bid to return everyone home...