35 episodes were originally broadcast in 1975
Using the deadly disintegrator weapon, the robot steals the destructor codes.
Sealed inside an underground bunker, Miss Winters issues her demands to the world's leaders.
The robot, distraught over killing its creator, takes Sarah hostage and goes on a rampage.
The survivors of mankind are in cryogenic suspension aboard the Nerva Beacon space station.
The survivors of the human race start to awaken. But Perhaps not all of them are entirely human.
Humankind faces total destruction. Can the Doctor defeat the Wirrn?
Trapped by the Wirrn, The Doctor and his friends are forced into one last terrible gamble.
Arriving on Earth, the Doctor, Harry and Sarah meet a group of stranded human colonists.
Sarah has been captured by Styre who is conducting experiments on the captured humans.
The Time Lords send the Doctor to Skaro at a point in time shortly before the creation of the Daleks.
The Doctor finds that some of Davros’s fellow Kaleds are unhappy with the development of the Daleks.
The Doctor informs the Kaled government of Davros's experiments and they move to shut down the bunker.
When the Kaled dome is destroyed by the Thals' rocket, the war appears to be over.
Davros interrogates the Doctor, forcing him to reveal the future of the Daleks.
The Kaled scientific elite move to prevent the development of the Daleks.
The Doctor, Sarah and Harry return to the Nerva Beacon space station, but at an earlier point in time.
Sarah is the latest victim of the space plague and the only way to cure her is by transmatting her to Voga.
The Doctor and two of the Nerva crew become walking bombs which the Cybermen plan to detonate.
Their plan to blow up Voga thwarted, the Cybermen intend to crash Nerva into the planet.
The Brigadier asks for help to discover what is causing the destruction of oil rigs off the coast of Scotland.
Sarah is attacked by a Zygon disguised as Harry who is a prisoner on the Zygon spaceship.
The Doctor and Sarah find their way into the Zygon spaceship at the bottom of Loch Ness.
The Zygon warlord, Broton, intends to use the Skarasen to attack the World Energy Conference in London.
The TARDIS takes the Doctor and Sarah to the planet Zeta Minor on the edge of the universe.
The Doctor and Sarah are held responsible for the deaths on Zeta Minor.
Lost in the universe of antimatter, the Doctor communes with the creature and makes a bargain.
Unable to escape, the Morestran probe is being pulled back to the surface of Zeta Minor.
The excavation of an ancient Egyptian tomb unleashes the Evil Sutekh, last of the Osirans.
The TARDIS is drawn off-course and lands in the country house of archaeologist Marcus Scarman.
As part of a plan to release Sutekh, the mummies are building a rocket to fire at the pyramid on Mars.
Inside the pyramid on Mars, the Doctor and Sarah Jane must solve puzzles and escape deadly traps.
The Doctor and Sarah are attacked by mysterious space suited figures and discover that the dead are walking.
Sarah Jane is taken prisoner by the alien Kraals and the Doctor discovers the truth.
The Kraals intend to invade Earth by stowing away aboard Crayford's rocket as it returns back home.
The Doctor and Sarah Jane are desperate to warn UNIT of the alien invasion, but nobody will believe them.