The further adventures in time and space of the alien adventurer known as the Doctor and his companions from planet Earth.

The Doctor, a Time Lord from the race whose home planet is Gallifrey, travels through time and space in their ship the TARDIS (an acronym for Time and Relative Dimension In Space) with numerous companions. From time to time, the Doctor regenerates into a new form.—Chris Wright

The Doctor is an ancient Time Lord/Lady who travels through time and space with their TARDIS (Time and Relative Dimension in Space). The Doctor is accompanied by companions on adventures. They will encounter some monsters, but at times, they also have to save the world.—midas-jacobs

The adventures of a Time Lord, one of a race of humanoid alien beings from the planet Galifrey. His/her name has never been revealed; he/she is known only as "The Doctor". He/she travels through time and space in a "TARDIS", which stands for "Time And Relative Dimensions In Space". It is much bigger inside than outside. In his/her travels, he encounters various monsters such as the Daleks, the Cybermen, and a renegade Time Lord known only as the Master. When the Doctor faces death, he/she cheats it by literally becoming a new person.