Norman Jones

Servants find the body of Colonel Barclay in the morning room, while his wife is found unconscious on the sofa.

An energy force compels the TARDIS to land in Renaissance Italy, where the Doctor intervenes in a cult's plan to enslave mankind.

Fear reigns in San Martino as the Hooded Terror seeks further victims.

Torture and death await the Doctor as the powers of darkness envelop Earth; the Doctor saves Giuliano and they try to find Sarah, unaware that she's been hypnotised.

The Doctor and Liz are summoned to the Wenley Moor Research Centre by the Brigadier, after several staff members suffer nervous breakdowns.

The Doctor attempts to convince people there are monsters in the caves, prompting Major Baker to start shooting at a reptile man.