Publisher's Synopsis
Together with Sarah and Harry, the Doctor finds himself stranded on the war-torn planet of Skaro, where the conflict between the Thals and the Kaleds has been raging for a thousand years. Chemical and biological weapons have started a cycle of mutation among the planet's inhabitants that cannot be stopped. But Kaled scientist Davros has perfected a life support system and travel machine for the creature he knows his race will ultimately evolve into - the Dalek. The Doctor's mission is to stop the creation of the Daleks, or perhaps affect their development so they evolve into less aggressive creatures.
