Season Nineteen - 1982
- 5Z : Castrovalva
The Master traps the Doctor in a mathematically created world - MA : Cold Fusion
More than one TARDIS lands on a barren ice world - 5W : Four To Doomsday
The Monarch plans to poison Earth and re-populate it with androids - 5Y : Kinda
On Deva Loka Tegan is enchanted and falls under the influence of the Mara - 5X : The Visitation
The Terileptils attempt to invade Earth by releasing the Black Death - PDA : Divided Loyalties
The Doctor receives a telepathic call for help from a classmate lost to the Celestial Toymaker - 6A : Black Orchid
The Doctor is expected at a cricket game, and Nyssa is the subject of mistaken identity - 6B : Earthshock
The Cybermen attempt to destroy a meeting on Earth by crashing a freighter into the planet - 6C : Time-Flight
The Doctor manages to return Tegan to Heathrow where Concordes have been disappearing - PDA : Empire Of Death
The Doctor and Nyssa are shocked when a ghost appears in the TARDIS - 6C/A : The Land Of The Dead
Alaska: The TARDIS departs avoiding an accident; thirty years on the Doctor and Nyssa find creatures - 6C/B : Winter For The Adept
Due to a teleportation accident Nyssa finds herself in the Swiss Alps, 1963 - 6C/C : The Mutant Phase
Daleks have occupied 22nd century Earth. By the 43rd century only a handful of humans survive - 6C/D : Primeval
Nyssa is dying, and there's only one place in the universe to go for help - 6C/E : Spare Parts
The Doctor and Nyssa unearth a black market in second-hand body parts - 6C/F : Creatures Of Beauty
What if it is not clear who is right and who is wrong? Who is ugly and who is beautiful?
Season Twenty - 1983
- 6E : Arc Of Infinity
Omega returns by cloning the Doctor's body - 6E/A : Omega
A strange telepathic message prompts the Doctor to travel to where Omega's ship vanished - MA : The Sands Of Time
Victorian London: Nyssa is kidnapped. What does the history of ancient mummy have to do with Nyssa? - PDA : Zeta Major
A remark made by a past Doctor has a big effect two thousand years later on the empire of Morestra - PDA : Fear Of The Dark
2382: Archaeologists land on Akoshemon's moon, searching for evidence of the planet's infamous past - 6D : Snakedance
Tegan is again under the control of the Mara - MA : Goth Opera
Nyssa is attacked by a child when on a holiday. She escapes with two small marks in her neck - 6F : Mawdryn Undead
A group of scientists who have achieved immortality seek death - 6G : Terminus
The Universe comes close to destruction when a ship's automatic pilot nearly dumps fuel - 6H : Enlightenment
Eternals are racing yachts; the winner will achieve enlightenment - 6J : The King's Demons
The Master plans to alter the course of history by preventing the Magna Carta from being signed - MA : The Crystal Bucephalus
When dining in a time travelling restaurant, the Doctor and companions are accused of murder - 6K : The Five Doctors
All the Doctors are brought together to help, and stop, the President of Gallifrey become immortal
Season Twenty One - 1984
- 6L : Warriors Of The Deep
Surviving Silurians plan to wipe out humanity by provoking global nuclear war - PDA : Deep Blue
The Doctor and his companions hope for a little time off, and arrive near Tayborough Sands, 1970 - 6M : The Awakening
War game reconstructions provide the Malus with the psychic energy it needs to reawake - PDA : The King Of Terror
At the end of millennium the future of humankind hinges on the activities of a multimedia company - 6N : Frontios
The Tractators have been creating tunnels with the aim of turning Frontios into a space vehicle - 6P : Resurrection Of The Daleks
The Daleks attempt to rescue Davros from the ship taking him to trial - MA : Lords Of The Storm
The Rutans' and Sontarans' conflict has been long, but one side may have victory within its grasp - PDA : Imperial Moon
The year is 1878: Three ships of the British Imperial Spacefleet have just set course for the moon - 6P/A : Phantasmagoria
The TARDIS takes the Doctor and Turlough to London in 1702 - 6P/B : Loups-Garoux
Time is running out as the fearsome shadow of an ancient werewolf moves ever closer - 6Q : Planet Of Fire
The Master has been shrunk after an accident with his tissue compression eliminator - PDA : The Ultimate Treasure
The quest for Rovan's hoard: what is it, and why has it remained undiscovered for so long? - PDA : Superior Beings
Deep beneath a pleasure-planetoid something is waiting... - PDA : Warmonger
A chain of events has been set in motion that will change the Doctor and Peri forever - 6Q/A : Red Dawn
Ares One: NASA's first manned mission to the dead planet Mars. But is Mars as dead as it seems? - 6Q/B : The Eye Of The Scorpion
Egypt is in mourning. Pharaoh, the great God-King, is dead. - 6Q/C : The Church And The Crown
Peri becomes embroiled in a plot to kill Queen Anne and the Doctor finds himself duelling Musketeers - 6Q/D : Nekromanteia
The Doctor struggles to understand the secret of the domain of the dead, known as Nekromanteia. - NV : Blood And Hope
The Doctor, Peri and Erimem find themselves in the midst of the American Civil War - 6R : The Caves Of Androzani
The TARDIS arrives in the middle of a battle between a military force and rebels - 7Z : The Sirens Of Time
Gallifrey is in a state of crisis and three incarnations of the Doctor must join together