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?

Another adventure for everyone's favourite Time Lord. UNIT is called to a sleepy mining town in South Wales to investigate the mysterious death of a miner in an inactive pit. The Wholeweal environmental community believe that a local chemical company has something to do with the death, and when the Doctor heads a mission down the mines he discovers thousands of maggots surrounded by poisonous slime. Further investigation at the chemical works reveals the owner to be under the malign influence of a sentient computer, BOSS.

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.

Three digitally remastered Doctor Who stories from the 1960s, '70s and '80s. In the three-part 'The Seeds of Death' (1969), the Doctor (Patrick Troughton), Jamie (Frazer Hines) and Zoe (Wendy Padbury) travel to a moon relay station to find out why T-Mat, a form of instant travel, has broken down. There they discover a race of Ice Warriors, planning to use T-Mat to carry seed pods to earth which will produce a deadly fungus to suck the air dry of oxygen. The Doctor has to foil the Ice Warriors' plan, avoiding the deadly pods along the way. In the four-part 'Carnival of Monsters' (1972), the Doctor (Jon Pertwee) and Jo (Katy Manning) find themselves arrested as stowaways after the TARDIS makes an unplanned arrival on the S.S. Bernice, en route to India in 1926. However, the ship is in fact trapped in a miniscope - the mechanical peepshow of intergalactic showman Vorg (Leslie Dwyer). When the Scope is impounded by officials on the planet Inter-Minor, many of the creatures contained within get loose, including the monstrous Drashigs. In the four-part 'Resurrection of the Daleks' (1983), the Daleks are once again seeking their creator, Davros (Terry Molloy), to discover a cure for the Movellan virus. Mercenaries free Davros from his prison ship, but the Kaled scientist has other ideas, and soon a Dalek civil war is underway. On 20th-century Earth the Doctor (Peter Davison), Tegan (Janet Fielding) and Turlough (Mark Strickson) are caught up between the rival factions and the Earth rebels, but they are already part of a larger plan to destroy Gallifrey.

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.

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.