The Doctor And The Poison Gas - The Poison Sky - Doctor Who - BBC

Want more Doctor Who? Visit the official Doctor Who channel: http://bit.ly/WWDoctorWho Doctor Who The home of Doctor Who on YouTube with clips dating back from 1963, all the way through dozens of regenerations, to the latest clips of the Peter Capaldi era and the announcement of Jodie Whittaker as the Thirteenth Doctor: http://bit.ly/WWDoctorWho The Doctor, Donna and Martha return to Earth by teleporting into Luke Rattigan's mansion. He build his own atmospheric converter, igniting the atmosphere to clear the poison, but will it be enough to save the world from the coking gas the Sontaran's created? Watch this fantastic clip from BBC smash hit Doctor Who to find out! Watch more high quality videos on the new BBC Worldwide YouTube channel here: http://www.youtube.com/bbcworldwide