Another adventure for everyone's favourite Time Lord. The TARDIS is forced to land on the planet Exxilon after suffering a sudden power loss. The Doctor (Jon Pertwee) and Sarah encounter a similarly stranded expedition from Earth, who are seeking a cure for the plague which is spreading rapidly across the galaxy. The Doctor believes that he can find a solution in the technologically advanced but long-abandoned city of the Exxilons, but becomes caught up in a power struggle between the humans and the latest arrivals to the planet: his old enemies, the Daleks.

Everyone's favourite time traveller returns to do battle with his greatest foes. Years after his peremptory departure from Totters Lane (see the first ever story, 'Doctor Who: An Unearthly Child'), the Doctor (Sylvester McCoy) returns to 1963 London to discover that the military have been called in to do battle with an alien invasion force at Coal Hill School. The aliens turn out to be none other than the Daleks, whose Emperor wants to obtain a Gallifreyan stellar manipulator - known as the Hand of Omega- which was left in the Doctor's care. However, a group of renegade Daleks are also after the Hand, in league with a fascistic human group. Can the Doctor defeat both Dalek armies and prevent the Hand of Omega being misused?

The newly regenerated Doctor (Tom Baker), assisted by Sarah, Harry and the Brigadier, has to track down the theft of the components for a powerful new laser gun, and the death of a prominent politician. Sarah investigates the mysterious Think Tank, where it becomes clear that robot K-1 is being misused by its political extremist masters and the Doctor has to prevent the robot from being used to start an atomic war. Tom Baker's first story as the Doctor.

The Doctor (Tom Baker) and Sarah (Elisabeth Sladen) arrive on storm ridden planet Karn, where mad scientist Dr Solon (Philip Madoc) is creating a hybrid monster body for the brain of renegade Time Lord Morbius (voice of Michael Spice). Also on the planet are the Sisterhood of the Flame, who believe that the Doctor has been sent by the Time Lords to steal their Elixir of life. The Doctor must convince the Sisters of his good intentions and prevent Solon from returning Morbius to life.

Jon Pertwee stars as the time travelling Doctor, who once more finds the planet under threat. Trying to avert a war which will bring Earth under the domination of the Daleks and their ferocious slaves (the Ogrons), the Doctor fights one of the biggest challenges he has faced so far.

Two classic multi-episode Doctor Who storylines from 1965, starring William Hartnell as the Doctor. In 'The Space Museum', the TARDIS and its occupants end up as an exhibit in a forgotten museum in the future. Episodes are: 'The Space Museum', 'The Dimensions of Time', 'The Search' and 'The Final Phase'. In 'The Chase', the travellers are forced to flee in the TARDIS when they learn that a group of time-travelling Daleks are on their trail with orders to exterminate them. Episodes are: 'The Executioners', 'The Death of Time', 'Flight Through Eternity', 'Journey Into Terror', 'The Death of Doctor Who' and 'The Planet of Decision'.

Another adventure for the sixth incarnation of the intrepid time traveller. The Doctor (Colin Baker) and Peri arrive on the planet Necros to pay their last respects to deceased agronomist Arthur Stengos. They discover that his final resting place - Tranquil Repose - is in fact a front for a Dalek farm run by the Great Healer, who turns out to be none other than the Doctor's old foe, Davros.

Another adventure for everyone's favourite time traveller. The Doctor (William Hartnell), Ian, Barbara and Vicki land on the planet Vortis, where a war is raging between the ant-like Zarbi and the butterfly-like Menoptra.

Feature-length episode to celebrate the 20th anniversary of the long-running sci-fi series. All five Doctors (Peter Davison, Patrick Troughton, Jon Pertwee, Richard Hurndall and Tom Baker) and many of their old companions are taken out of time and deposited in the Death Zone on Gallifrey. There they must battle not only the Master, but Daleks, Cybermen and Yeti in order to reach the Dark Tower and discover the Tomb of Rassilon. This special edition includes new special effects and extra footage not included in the original broadcast.