Deep in the heart of a hollowed-out moon the First Doctor finds a chilling secret: ten alien corpses, frozen in time at the moment of their death. They are the empire’s most wanted terrorists, and their discovery could end a war devastating the galaxy. But is the same force that killed them still lurking in the dark? And what are its plans for the people of Earth? An adventure featuring the First Doctor as played by William Hartnell and his companions Ben and Polly

Far out in space, on the ragged edges of Earth's bloated empire, an elite unit of soldiers is on a training mission. But deep in the heart of the hollowed-out planetoid that forms their battleground, a chilling secret waits to be discovered: ten alien corpses, frozen in time at the moment of violent, bloody death. The bodies are those of the empire's most wanted terrorists, and their discovery could end a war of attrition devastating the galaxy. But is the same force that slaughtered them still lurking in the dark tunnels of the training ground? And what are its plans for the people of Earth? When the Doctor arrives on the planetoid with Ben and Polly, he soon scents a net tightening about them. And as the soldiers begin to disappear one by one, paranoia spreads; is the real enemy out there in the darkness, or somewhere among them?

Landing on a barren asteroid, the Doctor and his friends discover the final pages of a drama that has torn apart an empire are being played out. Who is the man in the mask, and how are his chess games affecting life and death in his prison? What is the secret of the knights in armor that line the bleak walls of the settlement. And what is the nature of the alien ship approaching -- and what will it want when it arrives? Soon the TARDIS crew find themselves under siege with a deadly robotic race and human traitors to defeat -- and the future of an entire stellar empire hangs in the balance: if the Doctor cannot triumph it will become a force not for good, but for evil.

On a moon of the ruined planet Akoshemon, an age-old terror is about to be reborn. Something that remembers the spiral of war, pestilence and deprivation – and rejoices in it. The Fifth Doctor joins a team of archaeologists searching for evidence of the planet’s infamous past, and uncovers more than just ancient history. Forced to confront his own worst fears, even the Doctor will be pushed to breaking point – and beyond. An adventure featuring the Fifth Doctor as played by Peter Davison and his companions Tegan and Nyssa

The TARDIS takes the Doctor and Rose to a destination in deep space - Justicia, a prison camp stretched over seven planets, where Earth colonies deal with their criminals. While Rose finds herself locked up in a teenage borstal, the Doctor is trapped in a scientific labour camp. Each is determined to find the other, and soon both Rose and the Doctor are risking life and limb to escape in their distinctive styles. But their dangerous plans are complicated by some old enemies. Are these creatures fellow prisoners as they claim, or staging a takeover for their own sinister purposes? Featuring the Ninth Doctor and Rose as played by Christopher Eccleston and Billie Piper in the hit Doctor Who series from BBC Television

The Doctor Who 50th Anniversary Collection: Eleven classic adventures. Eleven brilliant writers. One incredible Doctor.