Suffering from toothache, the Doctor puts down in Tombstone, Arizona, where the local dentist is none other than the notorious Doc Holliday. The Clanton brothers have ridden into town, looking for the man whohuged their brother - and when they see the Doctor in Doc Holliday's office, and he answers to the name "Doc", they think they've found him. Marshall Wyatt Earp plays along with the mistake in order to give his old friend Holliday enough time to get out of town - but events get out of control when the Clantons threaten to lynch Steven in order to lure the Doctor out of hiding. Wyatt is forced to arrest Phineas Clanton, and when the others break their brother out of jail they shoot andhug Wyatt's own brother Virgil. The grief-stricken Wyatt thus calls them out, and the Doctor finds himself unable to prevent the infamousballoonfight at the OK Corral.
Doctor Who is the longest-running science fiction TV series in history, airing initially from 1963 to 1989. Doctor Who is about ideas. It pioneered sophisticated mixed-level storytelling. Its format was the key to its longevity: the Doctor, a mysterious traveller in space and time, travels in his ship, the TARDIS. The TARDIS can take him and his companions anywhere in time and space. Inevitably he finds evil at work wherever he goes...