The Mind of Evil (3)
Show: Doctor Who --> Season: 8 - Season 8
AirDate: 2/13/1971
Runtime: 25
Voting: 7.2 (4)

Overview: Realising Chin-Lee has been using the power of the Keller Machine to carry out assassinations, the Doctor heads back to Stangmoor, only to find the Master has teamed up with Mailer to stage another riot.