Fenric is loose and planning to use the Ancient Haemovore to poison the Earth with chemicals, unless the Doctor can defeat him in their centuries old game.
Quest roles:
Dinsdale Landen(Dr. Judson), Anne Reid(Nurse Crane), Alfred Lynch(Commander Millington), Marcus Hutton(Sgt. Leigh), Tomasz Borkowy(Captain Sorin), Raymond Trickitt(Ancient Haemovore)