The TARDIS materialises at the Roof of the World, Central Asia, in 1289. There they meet Marco Polo and his fellow travellers on their mammoth journey across the Pamir Plateau and through the Gobi desert to Peking. Unfortunately for the Doctor, his Ship proves to be of immense interest to Polo, who sets his mind on presenting it to the mighty Kublai Khan on arrival at his court.

The TARDIS lands in Paris in 1572 at the time of the massacre of the French Protestants at the hands of the Catholic Queen Mother, Catherine de Medici. Worryingly for the TARDIS crew, it appears that the hated Catholic dignitary the Abbot of Amboise is a dead ringer for the Doctor himself.

History must take its course...' The TARDIS materialises in the middle of a holy war between King Richard the Lionheart and the Saracen leader, Saladin, in 12th Century Palestine. As the Doctor, Vicki, Ian and Barbara explore their surroundings, they are suddenly caught up in a Saracen ambush - and Barbara is kidnapped. For the time travellers, intrigue and espionage ensue as they once again become involved in living history.

In it the time travellers arrive in Scotland in the aftermath of the battle of Culloden, meeting up with a band of fleeing Highlanders. Polly and the daughter of the group's Laird, whose battle injuries are being treated by the Doctor, go off to fetch water and return to find that the others have been captured by Redcoat troops. Can the Doctor save the day?

The travellers arrive in the dangerous domain of the Toymaker, where their failure to win at a series of games could result in them becoming his playthings for eternity. Apparently innocuous nursery characters reveal deadly intent, and for companions Steven and Dodo the stakes are raised with every game of blind man's buff and musical chairs. The Doctor, meanwhile, is rendered invisible and given the challenge of completing the fiendishly difficult Trilogic game.

The Doctor has adopted many guises in his time, but to be hailed as the great god Zeus is a bit of a shock. Yet this is exactly what happens when the TARDIS lands on the plains of Asia Minor, not far from the city of Troy. Taken to the Greek camp by Achilles, the Doctor is introduced to Agamemnon and Odysseus and forced to admit his less¿than¿godlike status. He is then given just two days to come up with a strategy for defeating the Trojans.

The Doctor, Jamie, and Zoe become victims of piracy when they materialise on a space beacon, minutes before it is literally blown to pieces. So begins their quest to be reunited with the TARDIS, whilst treading perilously across the paths of the Interstella Space Corps and a gang of murderous bandits.

Landing on a distant planet, the Doctor confidently announces to his companions that the TARDIS has brought them to an age of great advancement, peace and prosperity. The Doctor's calculations seem to be confirmed when the travellers are greeted by Jano and the Elders, who take them on a tour of their city - a haven of beauty, harmony and friendship, set in a wilderness inhabited by tribes of savages. But the security of the city is founded on one deadly and appalling secret. 

When the Doctor, Polly, and Ben visit a human colony that appears to be one big holiday camp they think they have come across a truly happy place. But a shadowy presence soon makes them realise that the surface contentment is carefully controlled. The colony's inhabitants have been brainwashed by giant crab-like creatures - the Macra. Insidious propaganda, broadcast by the Controller, forces the humans to mine a gas that is essential for the Macra to survive - but fatal to them. The colony must be saved - but how?

When the Tardis lands on an arid planet, it seems as though the whole place is desolate and lifeless. But then the Doctor, Steven, and Vicki discover two crashed spaceships: one contains the Drahvins, a race of stunning beauty; the other contains the hideous Rills. However, as the team soon finds out, appearances can be deceptive.

In their quest to gain control of the Solar System, the Daleks have taken posession of the Time Destructor, a weapon which threatens the safety of all who stand in their way. As they head up an alliance of alien races bent on destroying the human race, in their midst is none other than the treacherous Guardian of the Solar System, Mavic Chen.

The TARDIS lands on the seveneenth century Cornish coast, and its crew stumble upon a plot by the local Squire to receive and offload contraband goods. The Doctor meets the churchwarden, whose last words to him concern the whereabouts of hidden treasure. When pirate captain Samuel Pike learns of this, he kidnaps the Doctor and demands to be given the cryptic clue.

A full-cast narrated soundtrack of this eerie classic TV adventure starring William Hartnell as the Doctor.

Patrick Troughton witnesses 'the final end' of the Daleks in this exclusive recording of a classic 'lost' BBC television adventure, with linking narration by Frazer Hines.

Taking drastic measures to escape a Tardis malfunction, the Doctor and Jamie arrive on a rocket, apparently deserted in space, and soon encounter its aggressive robot guard. When a blow to the head then renders the Doctor unconscious, Jamie's only hope of rescue lies in contacting the Wheel space station which is orbiting nearby. In fact the rocket has other occupants, who are sending out mysterious egg-like spheres to penetrate the Wheel's outer surface.