In the second episode of the three-part story "Survival," the Doctor (Sylvester McCoy) and Ace (Sophie Aldred) are baffled by the strange goings-on in Ace's hometown of Perivale. While trying to help Sgt. Paterson (Julian Holloway) solve a series of disappearances, Ace herself vanishes, only to reappear in the Hunting World, where death is not the worst thing that can happen to her -- at least, not so long as the Cheetah People are around and about. First telecast on December 12, 1989, "Survival, Episode 2" was written by Rona Munro. ~ Hal Erickson, Rovi