Accompanying the Doctor and his granddaughter Susan on their adventures are school teachers Ian and Barbara, keen to return home to London in 1963. Along the way, they encounter Vicki, an orphan from 25th century Earth.
Their adventures include facing a Dalek invasion on Earth in the future, exploring alien worlds with Zarbi and Menoptra, and journeying to the past to meet Romans and Vikings.
Episode 1 of 3 from Planet of Giants
Being miniaturised - the Doctor, Barbara, Ian and Susan explore an English country garden.
Episode 2 of 3 from Planet of Giants
The Doctor and his friends witness the giant Forrester murder Arnold Farrow.
Episode 3 of 3 from Planet of Giants
Despite their small size, the travellers attempt to alert the authorities to Farrow's murder.
Episode 1 of 6 from The Dalek Invasion of Earth
The Doctor and his companions arrive in a London very different from what they remember.
Episode 2 of 6 from The Dalek Invasion of Earth
Susan and Barbara have joined the human resistance who launch an attack on the Dalek flying saucer.
Episode 3 of 6 from The Dalek Invasion of Earth
The rebel attack on the Dalek flying saucer has been defeated. London is crawling with Daleks and Robomen.
Episode 4 of 6 from The Dalek Invasion of Earth
The Doctor, Barbara and Susan make their way out of London to the Dalek's mining operation in Bedfordshire.
Episode 5 of 6 from The Dalek Invasion of Earth
It is revealed that the Daleks intend to use a bomb to extract the Earth's magnetic core.
Episode 6 of 6 from The Dalek Invasion of Earth
Barbara realises how to control the Robomen and orders an attack on the Daleks.
Episode 1 of 2 from The Rescue
Arriving on the planet Dido, the Doctor, Barbara and Ian discover a crashed spaceship from Earth and survivors.
Episode 2 of 2 from The Rescue
Ian and Barbara discover that the paralysed Bennett has gone missing from his cabin.
Episode 1 of 4 from The Romans
After relaxing at a Roman villa the Doctor is mistaken for a murdered lyre player and targeted by an assassin.
Episode 2 of 4 from The Romans
Barbara is sold as a slave and Ian is to be trained as a gladiator.
Episode 3 of 4 from The Romans
Poppaea plans to poison Barbara who has become the object of Nero's affections.
Episode 4 of 4 from The Romans
Inspired by the Doctor, Nero sets Rome ablaze. Ian must fight his way out of the arena and rescue Barbara.
Episode 1 of 6 from The Web Planet
Barbara falls under an hypnotic influence and is compelled to leave the safety of the TARDIS.
Episode 2 of 6 from The Web Planet
The Doctor and Ian trace the missing TARDIS to a giant web city and encounter a mysterious intelligence.
Episode 3 of 6 from The Web Planet
The alien intelligence, the Animus, coerces the Doctor to track down the invading Menoptra.
Episode 4 of 6 from The Web Planet
Ian and Vrestin fall into caverns beneath the surface of Vortis and encounter the Optera.
Episode 5 of 6 from The Web Planet
The Doctor and Vicki escape the Carsinome. Barbara and a few of the Menoptra hide in an ancient temple.
Episode 6 of 6 from The Web Planet
The Menoptra attack the Carsinome and the Doctor and his friends come face-to-face with the Animus.
Episode 1 of 4 from The Crusade
In 12th Century Palestine, the Doctor, Ian, and Vicki help King Richard. Ian is determined to rescue Barbara.
Episode 2 of 4 from The Crusade
The King's Chamberlain grows wary of the Doctor and Vicki. Barbara attempts to flee from her captors.
Episode 3 of 4 from The Crusade
The King's sister, seeks the Doctor's and Vicki's assistance in uncovering her brother's intentions.
Episode 4 of 4 from The Crusade
Barbara conceals herself from El Akir within a harem. Meanwhile Ian is taken captive by bandits.
Episode 1 of 4 from The Space Museum
Exploring a museum on the planet Xeros, the travellers discover they are invisible.
Episode 2 of 4 from The Space Museum
Back on the proper time track, the travellers take steps to change the future.
Episode 3 of 4 from The Space Museum
As events escalate, the travellers fear that they will not be able to escape their fate.
Episode 4 of 4 from The Space Museum
The Xeron rebellion is underway whilst the fate of the Doctor and his friends still hangs in the balance.
Episode 1 of 6 from The Chase
The Doctor and Barbara witness Daleks leaving Skaro on a mission to eliminate the Doctor and his companions.
Episode 2 of 6 from The Chase
The Doctor and his friends have been given shelter from the Daleks by the Aridians.
Episode 3 of 6 from The Chase
In an attempt to lose the Daleks, the Doctor makes a stop on the top of the Empire State Building.
Episode 4 of 6 from The Chase
With the Daleks in pursuit, the TARDIS lands in what appears to be a haunted house.
Episode 5 of 6 from The Chase
The Daleks follow the TARDIS to the jungle world of Mechanus, infested with lethal plants.
Episode 6 of 6 from The Chase
The Doctor and his friends are taken prisoner by the Mechonoids. There they meet fellow prisoner, Steven Taylor.
Episode 1 of 4 from The Time Meddler
The TARDIS lands on the English coast in 1066, but the travellers are puzzled to find modern day artifacts.
Episode 2 of 4 from The Time Meddler
The Doctor is held prisoner by the Monk in the monastery whilst Vicki and Steven search for him.
Episode 3 of 4 from The Time Meddler
Steven and Vicki discover an atomic bazooka. It seems that the Monk has plans for the Viking invaders
Episode 4 of 4 from The Time Meddler
Discovering the Monk's plan, the Doctor is determined to stop him meddling with history.