The last adventure to star Jon Pertwee. To save the Universe, the Doctor must travel to the planet Metebelis Three, where he discovers an invasion plan of Earth by the Metebelis Spiders, under the leadership of the Great One. To save the planet the Doctor must absorb a lethal dose of radiation, triggering his third regeneration...

Two classic Doctor Who adventures set on the planet of Peladon, starring Jon Pertwee as the Third Doctor, with Katy Manning as his companion in the first story and Elisabeth Sladen in the second. In the four-parter 'The Curse of Peladon' (1972), the Doctor (Pertwee) finally seems to have escaped his exile to Earth when he manages to transport Jo (Manning) in the Tardis to the planet Peladon. The pair are mistaken for Earth delegates at a conference to decide whether Peladon should join the Galactic Federation, and discover that someone is attempting to use the legendary royal beast of Aggador to trigger off a war. In the six-parter 'The Monster of Peladon' (1974), the Tardis arrives on the Planet of Peladon half a century after the Doctor's first visit. The planet has now become of great tactical importance because of its focal position between warring factions. The Doctor and Sarah (Elisabeth Sladen) have to act as peacekeepers between rival ambassadors and they must also find the truth behind 'the spirit'.

Forbidden to continue his travels through time and space by his fellow Time Lords, the newly regenerated Doctor (Jon Pertwee) begins his exile on 20th century Earth. His arrival coincides with a shower of strange meteorites, which are promptly investigated by the United Nations Intelligence Taskforce. Although his old friend Brigadier Alastair Gordon Lethbridge-Stewart (Nicholas Courtney) is initially suspicious of the Doctor's new appearance and personality, he is forced to ask for his help when several of the meteorites go missing. The Doctor discovers that the meteor shower was in fact the first wave of an invasion by hostile alien intelligence the Nestene; phase two begins when the Autons - deadly plastic mannequins created by the Nestene agents on Earth - launch an attack on the unsuspecting public.

Another adventure for everyone's favourite Time Lord. The arrival on Earth of a UFO brings with it the Axons - golden-skinned aliens who offer the gift of Axonite to mankind. The Doctor (Jon Pertwee) is suspicious, especially when he discovers that his old enemy the Master (Roger Delgado) is on board the Axon craft.

Three feature-length Doctor Who adventures. In 'Doctor Who and the Silurians' (1970), Jon Pertwee stars as the third Doctor, who is called to an atomic research station in Derbyshire to investigate a series of mysterious events. His questions uncover a vicious ring of in-house saboteurs and something a bit more slimy. In 'The Sea Devils' (1972), after visiting their old enemy the Master (Roger Delgado) in his remote island prison, the Doctor (Pertwee) and Jo learn of several recent accidents at sea, all of which have been accompanied by reported sightings of strange monsters. The Doctor discovers that the creatures responsible are the Sea Devils, acquatic cousins of the Silurians who are out to reclaim the planet Earth from mankind. In 'Warriors of the Deep' (1983), The Doctor (Peter Davison), Tegan and Turlough arrive at an underwater base on an Earth in the future on the brink of Atomic War. Helping to trigger this war are the planet's original inhabitants, the Silurians and the Sea Devils, aided by their killer pantomime horse, the Myrka.

Jon Pertwee stars as the time travelling Doctor, who once more finds the planet under threat. Trying to avert a war which will bring Earth under the domination of the Daleks and their ferocious slaves (the Ogrons), the Doctor fights one of the biggest challenges he has faced so far.

The Master (Roger Delgado) has stolen some top secret information giving details of one of the most destructive weapons in the known universe, and it is up to the Doctor (Jon Pertwee) to get that information back. The Doctor's quest takes him to the planet Uxarieus, where he becomes caught up in a dispute between the human settlers and the Interplanetary Mining Corporation. Meanwhile, the Master remains at large, and with murderous robots and rampant lizards to contend with, the Doctor's search for the all-important doomsday machine become evermore difficult.

The Doctor is on a mission, travelling back to the middle ages to locate some missing scientists. He is, however, seriously inconvenienced when he meets a Sontaran warrior. Jon Pertwee stars.

Another adventure for the third incarnation of the famous timelord. The action this time takes place on Earth, with the Doctor (Jon Pertwee) coming up against all kinds of opposition within the British space program when he attempts to investigate some mysterious messages travelling to and from the returning spaceship Mars Probe 7. When the ship's astronauts arrive back home, suspicious circumstances prevent the Doctor from speaking to them, which only makes him more determined to get to the bottom of the matter.

Feature-length episode to celebrate the 20th anniversary of the long-running sci-fi series. All five Doctors (Peter Davison, Patrick Troughton, Jon Pertwee, Richard Hurndall and Tom Baker) and many of their old companions are taken out of time and deposited in the Death Zone on Gallifrey. There they must battle not only the Master, but Daleks, Cybermen and Yeti in order to reach the Dark Tower and discover the Tomb of Rassilon. This special edition includes new special effects and extra footage not included in the original broadcast.