Summary: "The Doctor has regenerated and all is not well. Confused, angry and acting strangely, the new Doctor decides to become a hermit, so takes his concerned companion Peri to a desolate asteroid where he plans to live for several centuries. The time travelers soon uncover a plot that threatens the entire galaxy. But why has an alien gastropod kidnapped twin boys from Earth, and will the Doctor...
Format: moving image
Publisher / Publication Date: British Broadcasting Corp. 2010