The newly-regenerated Doctor helps UNIT battle a sentient robot being manipulated by a corrupt scientific organization.
Length 98 minutes
Tom Baker | Elisabeth Sladen | Ian Marter | Nicholas Courtney | John Levene | Patricia Maynard | Michael Kilgarriff | Edward Burnham | Alec Linstead | Timothy Craven | Clive Barrie | Walter Goodman | Jon Pertwee