A first Doctor adventure, featuring the Doctor as played by William Hartnell and his companions Ben and Polly. Deep in the heart of a hollowed-out moon the Doctor finds a chilling secret: ten alien corpses, frozen in time at the moment of their death. They are the empire's most wanted terrorists, and their discovery could end a war devastating the galaxy. But is the same force that killed them still lurking in the dark? And what are its plans for the people of Earth?

The TARDIS lands in 22nd century Africa in the shadow of a dormant volcano. Agri-teams are growing new food stuffs in the baking soil to help feed the world's starving millions, but the Doctor and Rose have detected an alien signal somewhere close by. When a nightmare force starts surging along the dark volcanic tunnels, the Doctor realises an ancient trap has been sprung. But who was it meant for? And what is the secret of the eerie statues that stand at the heart of the volcano? Dragged into a centuries-old conflict, Rose and the Doctor are soon elevating survival to an art form as ancient,...