Episode Description: Beware, spoilers! To read - hover over the text.
Doctor sitting in the TARDIS, discovers that the Earth has disappeared. The shadow proclamation tells him that this is not the first planet disappeared. The doctor, trying to unravel the cause of the disappearance of the planets, arrives on the trail to the Medusa Cascade. While far enslave the planet Earth. Later Dalek shoots the Doctor and he regenerates in the TARDIS.