The Impossible Planet (TV story)

Synopsis
The TARDIS lands in a base on a planet orbiting a black hole, an impossible situation that stumps even the Tenth Doctor. The base crew are drilling to the centre of the world, to claim the power that keeps it in orbit for themselves. However, an ancient evil is down there too, and he is awake…

Cast & Characters

 * The Doctor - David Tennant
 * Rose Tyler - Billie Piper