A sinister toyshop. The Earth erupting in violence. Shockwaves travelling through history. With old friends powerless to help, the Doctor is drawn into a deadly duel against an old nemesis who can bend reality to his will—and change the Doctor's future for ever... Based on a script by Russell T Davies, this thrilling third adventure for Doctor Who’s 60th anniversary features David Tennant as the Fourteenth Doctor and Catherine Tate as Donna Noble.