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`Doctor Who' is a classic science-fiction programme with a cult following. The Doctor is called a `Time Lord', a time-travelling scientist from a far off planet, who travels through time and space in a shop known by the acronym TARDIS. A TARDIS is a machine that is larger on the inside than the outside and is supposed to change its appearance based on its surroundings. The Doctor is also able to evolve his biology, so he appears as many different people throughout the series. The Doctor loves Earth, so he makes many trips here to save the planet, or to enlist earthlings to help him with tasks in the galaxy.
Scientists go missing and the Doctor learns that the kidnapper is an alien from the past.
The Doctor discovers that the alien is a Sontaran warrior called Linx.
Linx is providing advanced weaponry to Irongron and his men.
His ship repaired, Linx prepares to take off as the Doctor races to stop history changing.
Invasion of the Dinosaurs: Part 1. The Doctor and Sarah return to London but find the city deserted.
The Doctor plans to capture a dinosaur and discover who is bringing them through time.
Invasion of the Dinosaurs: Part 3. The Doctor captures a Tyrannosaurus Rex as Sarah falls into enemy hands.
Invasion of the Dinosaurs: Part 4. The Doctor is framed for causing the appearance of the dinosaurs.
Invasion of the Dinosaurs: Part 5. Sarah discovers that the spaceship passengers are all victims of a deception.
The Doctor attempts to thwart the Operation Golden Age conspiracy and stop the time reversal in an effort to restore peace.
The TARDIS suffers a power drain and is forced down on the planet Exxilon.
Dalek weapons are useless due to the power drain so they make a truce with the Doctor.
The Daleks force the Exillons to work as slave labour to mine the life-saving parrinium.
The Daleks prepare to launch a deadly plague missile that will kill everyone on Exillon.
The Doctor makes a return visit to Peladon some years after his previous visit.
Chancellor Ortron sentences the Doctor and Sarah to be punished by Aggedor.
The Doctor attempts to expose the fraud of Aggedor's ghost.
The Ice Warriors have taken control of Peladon, so the Doctor plans to defeat them.
Commander Azaxyr and his Ice Warriors are revealed as traitors, in league with Galaxy 5.
The Doctor and the miners fight to reclaim Peladon from the Ice Warriors.
The Doctor receives a mysterious package from his old companion, Jo Grant.
Planet of the Spiders: Part 2. Lupton, now under the control of a giant spider, steals the blue Metebelis crystal.
As unusual powers and deadly side effects come to light, the Doctor uncovers connections reaching far beyond Earth.
Planet of the Spiders: Part 3. Following Lupton, Sarah is accidentally transported to Metebelis 3 where she is captured.
The search for powerful crystals intensifies, drawing the Doctor into growing conflict and personal risk.
The Doctor is in a coma and Sarah is held prisoner in the spiders' larder.
Planet of the Spiders: Part 5. Sarah makes a bargain with the Queen Spider and returns to Earth with the Doctor.
New. With multiple forces racing toward the same goal, the danger escalates and time starts to run out. S1 Ep5
The Doctor returns to Metebelis 3 where he must face the spiders' ruler, the Great One.