A massive shape scuttles out of the darkness and strikes the earth Overlord down. It is a Mutant – a huge insectoid creature. It moves in a crouch, its back arched and scaly, with huge knobbly vertebrae. The controlling Overlord, the Marshal, has ordered all such Mutants killed instantly. What was happening to the people of Solos? Why are they gradually turning into Monsters? Hands that become claws, flesh that turns scale-like… DOCTOR WHO scripts – awarded the Writer’s Guild Award for the best British children’s original drama script.