
The season introduces William Hartnell as the First Doctor, an alien who travels through time and space in his TARDIS, which appears to be a British police box on the outside. Carole Ann Ford is also introduced as the Doctor’s granddaughter Susan Foreman, who acts as his companion alongside her schoolteachers Ian Chesterton and Barbara Wright, portrayed by William Russell and Jacqueline Hill, respectively. Throughout the season, the Doctor and his companions travel throughout history and into the future. Historical stories were intended to educate viewers about significant events in history, such as the Aztec civilisation and the French Revolution; futuristic episodes took a more subtle approach to educating viewers, such as the theme of pacifism with the Daleks.
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Episode 1
An Unearthly Child
After discussing a strange pupil, Susan Foreman, teachers Ian and Barbara follow her to a junkyard. They meet her grandfather, the Doctor, and force their way inside a police box…
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Episode 2
The Cave of Skulls
The enigmatic Doctor, wary that Ian and Barbara will reveal his secrets to the people of 20th-century Earth, takes them and his granddaughter Susan back to the dawn of human…
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Episode 3
The Forest of Fear
Prisoners of the earliest humans, the TARDIS crew are caught in a deadly power play for leadership of the tribe.
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Episode 4
The Firemaker
The TARDIS crew must make fire for the early humans to stay alive. But once they do, they may not be allowed to leave!
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Episode 5
The Dead Planet
Time Unknown, Planet Unknown. The TARDIS lands in an eerie petrified forest overlooking a magnificent steel city. The Doctor wants to explore the city – but what's waiting there?
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Episode 6
The Survivors
The dead planet is not uninhabited after all. The Doctor is about to meet what will become his greatest enemies... And he and his crew are dying of radiation sickness.
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Episode 7
The Escape
Imprisoned on Skaro by the scheming Daleks, the Doctor and his companions work to escape their clutches.
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Episode 8
The Ambush
The time travellers work desperately to both escape the Dalek city and prevent a bloody massacre.
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Episode 9
The Expedition
The time travellers have escaped from the Daleks, but left a vital piece of the TARDIS behind. Getting it back will mean pushing the Thals to mount a dangerous operation.
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Episode 10
The Ordeal
Ian, Barbara and the Thals struggle through the caves to reach the Dalek city. Will they get there in time? Is there even a way through the treacherous caves? And…
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Episode 11
The Rescue
Time is running out as the Doctor and his companions try to defeat the Daleks before they wipe out all life on Skaro.
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Episode 12
The Edge of Destruction
A mysterious explosion has knocked the TARDIS into void. And in their confusion, the crew are turning on one another.
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Episode 13
The Brink of Disaster
The TARDIS is adrift, the crew turning on each other. Only by working together can they find their way out before they are destroyed.
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Episode 14
The Roof of the World
The TARDIS experiences a total power failure and is stranded in the Himalayas in the 13th century. The travellers are forced to join the caravan of the famous explorer, Marco…
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Episode 15
The Singing Sands
Tegana sabotages the party's water bags, leaving them in dire need of fresh supplies.
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Episode 16
Five Hundred Eyes
The Doctor and Susan are able to supply Marco with condensation that has formed inside the TARDIS, saving the group from dying of thirst. When the group are reunited with…
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Episode 17
The Wall of Lies
The Doctor's group manage to rescue Barbara from the Mongols but once more Marco remains unaware of Tegana's involvement.
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Episode 18
Rider from Shang Tu
The Doctor and his friends elect to warn Marco of Acomat's attack even though it means losing their chance to gain access to the TARDIS.
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Episode 19
Mighty Kublai Khan
The Doctor, Ian and Barbara are forced to surrender to Tegana and Marco, leaving both of them the opportunity to gain possession of the TARDIS.
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Episode 20
Assassin at Peking
Tegana finally makes his move to assassinate the Khan, giving the Doctor and his friends an opportunity to thwart his plans and regain the TARDIS.
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Episode 21
The Sea of Death
The alien world of Marinus. Perfect peace has reigned here for decades due to the mind-controlling influence of a machine known as the Conscience. But now a race known as…
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Episode 22
The Velvet Web
The Doctor and his friends arrive in the apparently idyllic city of Morphoton but Barbara soon begins to realise there is more to their hosts than meets the eye.
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Episode 23
The Screaming Jungle
The search for the second key takes the travellers to a jungle where Ian and Barbara come under threat from rapidly growing plants.
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Episode 24
The Snows of Terror
Searching for the third key, Ian and Barbara meet with the sinister trapper Vasor before following Susan and the others into a cave system guarded by the mysterious Ice Soldiers.
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Episode 25
Sentence of Death
The group are reunited with the Doctor in the city of Millennius where Ian faces trial for murder after the fourth key is stolen.
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Episode 26
The Keys of Marinus
The Doctor and his friends must locate the real murderers and the fourth key before heading off for a final confrontation with the Voord
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Episode 27
The Temple of Evil
The TARDIS arrives on Earth landing in 16th century Aztec society. Barbara goes off exploring - despite the Doctor's orders not to wander off - and is taken away by…
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Episode 28
The Warriors of Death
Barbara tries to change the course of history - and Ian fights for his life.
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Episode 29
The Bride of Sacrifice
While the Doctor tries to find a way back to the TARDIS, Tlotoxl continues to plot Barbara's downfall and sees an opening when Susan questions Aztec custom.
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Episode 30
The Day of Darkness
Tlotoxl's machinations result in both Susan and Ian being arrested. With the TARDIS once again trapped inside the tomb, the travellers' only hope for escape lies with Autloc and Cameca.
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Episode 31
Strangers in Space
The 28th century. The TARDIS materialises on a spaceship orbiting a planet known as the Sense-Sphere, whose natives, the Sensorites, have trapped the ship's human crew in a state of…
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Episode 32
The Unwilling Warriors
The Doctor and his companions are on board an Earth ship trapped in orbit around the Sense-Sphere when it is boarded by the Sensorites, who steal the lock mechanism from…
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Episode 33
Hidden Danger
The Doctor and his companions are escorted to the Sense-Sphere where they attempt to negotiate with the Sensorites for the release of the TARDIS.
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Episode 34
A Race Against Death
With Ian having fallen victim to the Sensorites' plague, the Doctor is desperate to find a cure. But the City Administrator is still determined to rid his world of aliens.
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Episode 35
Kidnap
The City Administrator is determined to destroy the Doctor and his friends and his paranoia prevents the Doctor's cure from being distributed.
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Episode 36
A Desperate Venture
While the City Administrator's schemes reach their climax, the Doctor and Ian venture into the tunnels under the city to discover the real cause of the Sensorite plague.
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Episode 37
A Land of Fear
The TARDIS lands during the French Revolution, where Ian, Barbara, and Susan become caught up in the politics of the day. When they are arrested and set to be executed,…
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Episode 38
Guests of Madame Guillotine
Susan, Ian and Barbara are sentenced to be guillotined but an encounter with a dying English prisoner may offer Ian a chance of survival.
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Episode 39
A Change of Identity
Susan and Barbara are rescued by Jules and Jean, two members of the escape chain, while the Doctor gains access to the prison by posing as a revolution official.
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Episode 40
The Tyrant of France
The Doctor is forced into a meeting with Robespierre while Barbara's attempts to find a physician for Susan result in them being betrayed.
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Episode 41
A Bargain of Necessity
Ian finds himself held prisoner by the treacherous Leon while the Doctor attempts to engineer Susan and Barbara's escape.
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Episode 42
Prisoners of Conciergerie
Ian finally delivers his message to James Stirling but in order to secure Susan's release he and Barbara are forced into a dangerous spying mission.