Episode Description: Beware, spoilers! To read - hover over the text.
It is unknown where and when the Doctor appears and saves the little boy with his sonic screwdriver, and then asked what his name is and cringes. Before him the Davros - the future developer of the Daleks. Through the centuries Davros instructs his servant to find a Doctor, wherever he was. Going back in time, the Doctor's going to kill the boy.