The TARDIS arrives in 2070 on the Moon, where a weather control station under the command of a man named Hobson is in the grip of a plague epidemic — in reality the result of an alien poison planted by the Cybermen. Jamie is knocked unconscious and lapses into a delirium, leaving the Second Doctor, Ben, and Polly to fight off a massive Cyberman attack.
Patrick Troughton
Anneke Wills
Michael Craze
Frazer Hines
Patrick Barr
André Maranne
Michael Wolf
John Rolfe
Mark Heath
Alan Rowe
Denis McCarthy
Barry Ashton
Derek Calder
Arnold Chazen
Leon Maybank
Victor Pemberton
Edward Phillips
Ron Pinnell
Robin Scott
Alan Wells
Mark Heath
John Maxim
Sonnie Wills
Peter Greene
Keith Goodman
Reg Whitehead
Peter Hawkins