As Rose Tyler embarks upon her first big TARDIS adventure with the newly-regenerated Doctor, they discover a sinister hospital run by strange cat people and run in to two old acquaintances, The Face of Boe and Cassandra.



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Episode complete credited cast:
Doña Croll ...
Matron Casp (as Dona Croll)
Michael Fitzgerald ...
Lucy Robinson ...
Fran Clovis
Anna Hope ...
Face of Boe (voice)


The Doctor and Rose set out on their first adventure together since the Doctor regenerated. The Doctor takes Rose to see the Planet New Earth, colonized by the human race since the destruction of the original planet Earth. On arriving the Doctor receives an invitation to visit a hospital run by the sisters of plenitude. A sisterhood of cat-women nuns who have the uncanny ability to cure so many long thought incurable diseases. But as the Doctor and Rose discover there is a sinister method as to how the Sisterhood manage to develop such cures. While unknown to them both an old enemy thought to be deceased, awaits the Time lord and his companion. Written by Robert McElwaine

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Release Date:

29 September 2006 (USA)  »

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This episode takes place in 2007 and 5000000023. See more »


Those people created for medical experiments cannot run. In fact they can barely walk, so how come they can climb nearly as fast as Rose? What's more, when you see them climbing, they seem to have little ability to coordinate hand over hand. Even with the delay brought on by the cat-woman-thing, they should not have been able to keep up with her. See more »


Cassandra (in Rose's body): [Cassandra tries to escape out a door only to find her way blocked by the diseased patients; shuts the door and turns to the Doctor panicked] We're trapped! What are we going to do?
The Doctor: Well, for starters, you're going to leave that body. That psyco-graft is banned on every civilized planet. You're compressing Rose to death!
Cassandra (in Rose's body): [sounding annoyed] But I've got nowhere to go. My original skin's dead.
The Doctor: Not my problem. You can float as atoms in the air. Now get out.
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Featured in The 50 Greatest Television Dramas (2007) See more »


Doctor Who Theme
Written by Ron Grainer
Arranged by Murray Gold
Performed by BBC National Orchestra of Wales
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User Reviews

Dr. travels farther into the future than ever (so he says)
19 April 2006 | by (United States) – See all my reviews

When Eccleston left the role I was afraid that the chemistry between Rose and the Dr. would evaporate. David Tenant has actually picked up where Eccleston left off and has brought Ecclestons' wide eyed wonder to the role.

I am very pleased that they are bringing back aliens from the second episode of the first season. The writers are doing an excellent job.

I don't want to spoil too much, but it is also established that Rose is attracted to the "New New" doctor thanks to the mind invasion of Cassandra. This one is worth a watch and I believe that David Tenant will be a strong actor in the role of the Doctor.

The Brits always get it right!

6 of 10 people found this review helpful.  Was this review helpful to you?

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