Classic British sci-fi adventure starring Tom Baker. The Doctor is dispatched on a quest by the White Guardian with a new cohort, Romana, to search for the six segments of the Key to Time. (1978)

Classic British sci-fi adventure starring Sylvester McCoy. With various factions vying for ownership of the deadly statue that is Nemesis, hostilities begin to break out.

Classic British sci-fi adventure starring Sylvester McCoy. The Cyber fleet is in place around Earth, and it looks like the Doctor has no choice but to surrender Nemesis to the Cybermen.

Classic British sci-fi adventure starring Sylvester McCoy. Ace and the Doctor arrive at a WW2 coastal Naval base, whilst unobserved, a party of Soviet soldiers land upon the beach.

Classic British sci-fi adventure starring Sylvester McCoy. The Doctor tries to persuade the Soviet Captain to delay his assault, while the ULTIMA machine reveals new messages in the crypt.

Classic British sci-fi adventure starring Sylvester McCoy. There is trouble afoot as vampyric haemovores roam free and Millington is convinced that the Viking prophecy is coming true.

Classic British sci-fi adventure starring Sylvester McCoy. When the chains of Fenric are shattered an ancient game of war must be re-played and a poison threatens all of mankind.

Ground-breaking first adventure of the British sci-fi hero starring William Hartnell. Two teachers meet a mysterious and cranky old man within a oddly roomy Police Box found in a junk yard.

Ground-breaking first adventure of the British sci-fi hero starring William Hartnell. Ian and Barbara force their way aboard the TARDIS and the Doctor whisks them off to the Stone Age.

Series 1963, Episode 3Ground-breaking first adventure of the British sci-fi hero starring William Hartnell. The Doctor and his cohorts venture outside the TARDIS but are soon captured and face certain death.

Ground-breaking first adventure of the British sci-fi hero starring William Hartnell. The Doctor and his companions must use all their guile and cunning to escape their captors.