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The adventures in time and space of the Doctor, a Time Lord who changes appearance and personality by regenerating when near death, and is joined by companions in battles against aliens and other megalomaniacs.
Traveling across time and space, the immortal time-lord known as 'The Doctor' travels across the universe with his many companions and his loyal shape-shifting space-ship: the TARDIS. The Doctor faces many threats across many generations: from the Daleks, the Cybermen and his time-lord adversary the Master to the sinister Davros, creator of the Daleks.