"
New Earth" is the first episode of the
second series of the British
science fiction television series
Doctor Who, first broadcast on 15 April 2006. It is a sequel to the
first series episode "
The End of the World", and brings back its villain who was thought to be destroyed,
Lady Cassandra, as well as the mysterious
Face of Boe. In the year five billion and twenty-three, after the destruction of Earth in "The End of the World", the
Doctor and
Rose arrive on the New Earth and enter a hospital run by half-alien cat-like nuns called the Sisters of Plenitude, who have been hiding a gruesome secret.