The Face of Evil: Part Four 1977
7.6 251 As the Saveteem and Tesh finally close in for a fight to the death, the powerful but long-suffering Xoanon ignores their strife to commit its full resources toward killing the Doctor, even to the extent of destroying everyone.
Runtime: 25 min
Starts: Tom Baker, Louise Jameson, Brendan Price, Leslie Schofield, David Garfield
Director: Pennant Roberts