2000 years ago, the galaxy was devastated by a great catastrophe. Some say it was the work of the 'Dark One' of the 'Bringer of Death'. In the ancient remains on the planet Velyshaa, a lonely outcast is uncovering evidence of who that terrible figure was.

The Doctor and Charley travel to the remote Cimmerian System to unravel the mystery of its sun. But darkness has already embraced the scientific base on Cimmeria IV in more ways than one.

The Doctor and Romana find themselves in the Proxima System, where enigmatic Conglomerate CEO Cuthbert has been conducting his infamous 'experiment'. An experiment which might accidentally rip the universe apart.

In the distant future, a Thal scientist must choose whether to betray his heritage, or see the universe destroyed. What is certain is that no matter where the Doctor turns, the Daleks, will be waiting for him. What could possibly be worse than that?

The Orion War situation is worsening by the day. The human race is sleepwalking towards extinction. Now, the time is right for the next phase of the Cyber plan to begin.

The Daleks are conquering our galaxy. Nothing can stop them. But Commander Agnes Landen has an idea. On the outer planet Talis Minor, Salus Kade is struggling to keep his colony alive. The last thing he needs is a war to fight.

Agent Galanar is on a covert mission to find a definitive proof of menace of the Daleks. But the Border Worlds are being ravaged by a deadly plague infection. An infection the Daleks are offering to cure...

At the end of Dalek Empire 2, Siy Tarkov set off from Valyshaa with vital information warning of an imminent Dalek invasion. 20 years later, the only proof Tarkov ever existed is a garbled message, calling for help. But no-one is listening...

The universe stands on the brink of a dimensional crisis, and the Doctor and Raine are pulled into the very epicentre. Meanwhile on Earth, UNIT scientific advisor Dr Elizabeth Klein and another Doctor are tested by a series of bizarre alien invasions...

The Daleks have devised a plan that will deliver a decisive victory. General Landen and her fleet are all that stand in their way. And then there's Kade...