Search Worlds Without End

Two planets, Janus Prime and Menda, orbit a Red Giant on the edge of the galaxy. The planets lie diametrically opposite each other on either side of the huge sun -- but where Menda is rich and fertile in the light of the sun, Janus Prime's moon leaves the sun in a constant state of eclipse.

Humans are colonizing the area, and a rival group sets up on Janus Prime via a mysterious transmit system left behind by the planets' former inhabitants. But what is its true purpose?

When the Doctor and Sam arrive they must piece together a centuries-old puzzle. How can Janus Prime's moon weigh billions of tons more than it should? What is the secret purpose of the hyperspatial link? They discover a terrible weapon is hidden in the glowing sands of the planet, one that if it falls into the hands of the warring humans could destroy the galaxy.

In the eighth Doctor, Fitz and Compassion story, the Doctor materializes underground, where he and his companions are led to safety by a humanoid character, who explains that this is the planet Eskon.

On 49th century Earth, mankind has developed time-travel technology, and a government security force has been set up to control illegal time jumps.

Special Agent Kala Golightly has been assigned the mission of recovering a devastating weapon that has been accidentally sent back through time. Traced to Wiltshire, 1934, the timer on this weapon is running and if Kala doesn't recover it before it activates, it will become capable of genetically re-engineering everything that comes into contact with it. In this event, Kala is under orders to detonate a nuclear device that will destroy the entire area.

Charles Rigby, resident of the small village of Marpling, discovers the device in his back garden. It is accidentally triggered and takes over some wasps whose nest was nearby. They are transformed into carriers of psionic intelligence.

There is no such thing as a good night. Maybe, as you fall asleep, you can hide away in dreams. Or so you'd like to think. Because, as every child knows, there are bad dreams. And bad dreams are a glimpse into the real world - where the monsters are. And the things in your nightmares that are worse than monsters: the creeping black memories that can bring fear and pain and blood. Even here, today, tonight ... in the most ordinary of homes, and against the most ordinary people, the terror will strike. An old man will tell his last ghost story... A young family will encounter a deathless horror... And the Doctor and his friends will uncover the terrible secret of the Deadstone Memorial.