An ordinary London bus ride takes the Doctor and some unsuspecting passengers through an unexpected wormhole to an extraordinary adventure on a vast wasteland planet. The Doctor must join forces with the mysterious Lady Christina, an unfamiliar insectoid species, and a quirky scientist in London to stop a terrifying swarm and fulfill his promise to get the frightened passengers back home.

Originally broadcast on television in the United Kingdom in April 2009, as a special episode between seasons/series 4 and 5. Broadcast in the U.S. by BBC America, July 2009. "Distributed by BBC Worldwide Americas, Inc., acting as agents for 2 Entertain Video Ltd."--Disc label. Special features: Doctor Who confidential, a 60-minute special with a behind-the-scenes look at and discussion of the making of this 60-minute episode.

Planet of the dead (ca. 60 min.) -- Doctor Who confidential (ca. 60 min.).