Will Thorp

Rose finds herself on a desolate world, in the orbit of a black hole. Trapped with an Earth expedition and the mysterious Ood, the time-travellers face an even greater danger, as something ancient beneath the planet's surface begins to awaken.

As Rose battles the murderous Ood, The Doctor finds his every belief being challenged to the core as the Pit beckons. With the planet threatening to fall into the black hole, The Doctor must make the ultimate sacrifice.