Written by: Russell T Davies and Gareth Roberts
Directed by: James Strong
First transmitted on: Saturday 11th April 2009
Running Time: 60 minutes
Setting: London, 2009. The Doctor, the bus and the rest of its passengers are transported to the Scorpion Nebula, located on the other side of the Universe. The bus travels through a wormhole and lands on the planet of San Helios, which has been ravaged by the Swarm and everything that it was is now dust and sand.
Filming: Filming for this episode began on 19th January 2009 and wrapped on 14th February 2009. Scenes for the opening sequence inside the International Gallery were filmed at the National Museum of Wales, and scenes at the tunnel were shot at Butetown Tunnel in Cardiff. Filming also took place in Dubai.
Guest Cast:
- Michelle Ryan (Lady Christina de Souza)
- Professor Malcolm Taylor (Lee Evans)
- Captain Erisa Magambo (Noma Dumezweni)
- D.I. McMillan (Adam James)
- Lou (Reginald Tsiboe)
- Carmen (Ellen Thomas)
- Angela (Victoria Alcock)
- Barclay (Daniel Kaluuya)
- Nathan (David Ames)
- Bus Driver (Keith Perry)
- Sgt. Dennison (Glenn Doherty)
- Sgt. Ian Jenner (James Layton)
- Sorvin (Paul Kasey)
- Praygat (Ruari Mears)
Viewing Figures: 9.54million

