Doctor Who Season 0, Episode 4 :

The Rani plans to transfer her time tunnel to the centre of the Earth's time meridian, and use her store of genetic codes and brain prints of every living creature to control evolution itself. Can the Doctor escape from the time trap and save the universe? Guest Stars: David Tennant, Catherine Tate, Sarah Parish, Don Gilet, Howard Attfield, Trevor Michael Georges, Jacqueline King,

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