England, 1883. The Doctor brings Ace to a house called Gabriel Chase in her home town of Perivale. The Gothic mansion is presided over by one Josiah Samuel Smith--an evolved alien brought to Earth in a stone spaceship that is now in the basement beneath the house, and which still holds an ancient evil capable of wiping out the world.
Elenco: William Hartnell , Patrick Troughton , Jon Pertwee , Tom Baker , Peter Davison , Colin Baker , Sylvester McCoy .