Season 5

(4 episodes)

The once-feared Cybermen have disappeared from the universe without trace. An expedition from Earth arrives on Telos, homeworld of the Cybermen, to try and discover exactly what has become of the silver giants. Soon after the Doctor, Jamie and Victoria join the archaeological party, the first mysterious death occurs. With the group now stranded on Telos, it becomes clear that the Cybermen may not be as 'dead' as it was first thought... Beneath the planet's surface, giant ice-tombs hold the last remains of the Cybermen in a frozen sleep. And someone is working to re-activate them from their slumber...

Written by Kit Pedler and Gerry Davis

(6 episodes)

The year is 1935. The TARDIS materialises in the snowy Himalayas, and the Doctor makes a return visit to the nearby Detsen monastery. Having last been there three hundred years ago, he is astonished to find the community of monks and lamas divided by conflict. The monastery is under attack, apparently from the Yeti, which are said to roam the mountainside. Furthermore, the Doctor discovers that his friend the High Lama is still alive, his ancient body under the influence of an apparently unearthly force... Meanwhile, explorer Edward Travers is determined to track down and capture one of the Yeti. When his colleague is murdered, he refuses to blame the creatures and instead accuses the Doctor. The time travellers discover that the Yeti are all too prominent in the area. In fact, they are set to kill anyone who threatens the plans of the disembodied Intelligence which they serve. Whilst Jamie is keen to lend his weight to the problem, Victoria's curiosity seems bound to lead her into danger. The Doctor and his companions soon realize that not only the monastery but the safety of the whole world is in peril.

Written by Mervyn Haisman and Henry Lincoln

(6 episodes)

In the distant future, Earth faces a new Ice Age. While a dedicated team of scientists battle to hold the approaching glaciers at bay, a startling discovery is made deep within the ice... an alien warrior, frozen for millennia. When the Doctor, Jamie and Victoria arrive they soon discover Earth is under threat from the Ice Warriors. Fearsome Martians intent on conquering our planet for themselves...

Written by Brian Hayles

(6 episodes)

The TARDIS lands on an Australian beach in the 21st Century. But this is no seaside holiday - within minutes, the Doctor, Jamie and Victoria are under attack. They soon discover that the Doctor bears a startling resemblance to Leader Salamander, a would-be dictator intent on world domination. Before long, the Doctor and his companions are plunged into a dangerous game of espionage, intrigue and deceit as they face off against the enemy of the world...

Written by David Whitaker

(6 episodes)

In order to escape an attack in space, the TARDIS makes an unscheduled landing and ends up deep inside the London Underground. Here the travellers soon find themselves engulfed in a thrilling battle with the Great Intelligence and the Yeti, a deadly enemy set to invade the Earth. But as events take a turn for the worse, it becomes clear that the golden prize is not just the Earth, but the Doctor's mind too...

Written by Mervyn Haisman and Henry Lincoln

(6 episodes)

The TARDIS brings the Doctor, Jamie and Victoria to the present-day North Sea coast. Something nasty is lurking in the gas pipelines of the North Sea, and before long the nearby refinery is under attack. The Doctor discovers that a form of living seaweed is at work, and that a number of the base personnel have been possessed. Can he and his friends work in time to prevent an entire take-over of Earth?

Written by Victor Pemberton

(6 episodes)

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. What dangerous cargo do the spheres bring to the human crew of the Wheel, and what is the intention of those who are sending them? It's not long before the Doctor and Jamie realise that their old adversaries, the Cybermen, are seeking to invade first the Wheel and then Earth itself. One by one the space station's crew are being taken over, whilst deadly rodent-like Cybermats roam the space station and steadily consume its fuel supply. On top of everything, a meteorite storm is approaching, but the Wheel's defence system has been disabled...

Written by David Whitaker (from a story by Kit Pedler)