Novelization of the Doctor Who TV episodes/story "Day of the Daleks".
Exterminate! Exterminate!
The Daleks, Doctor Who's oldest and most ruthless enemies, have on goal - total world power. Their prime weapon is time travel. In the late Twentieth Century, they attacked the Planet Earth. Their plan: alter the course of history. Start World Wars. Wipe out the human population. They were very effective.
Can Doctor Who, trapped in the Twenty-Second Century, reverse history's course in time to save our planet and every living thing on it, including himself, from the devastation and evil force of the Daleks?