A stranger calls at the home of divorcée Anna Preston, asking to collect some of her ex-husband's belongings. Anna agrees, but is suspicious, and tries to contact her 'ex' at the space-research establishment where he worked. But none of his colleagues can tell her where he is and the authorities block all her efforts to find out. Anna grows more convinced that he is in danger, but the truth is more horrifying than even she can imagine.

Charles Dennistoun, a 60-year-old contestant on 'You Bet a Million' - a quiz show for millionaires - wins the jackpot prize, a course in rejuvenation. But his friends and family have mixed feeling, and the repercussions have blackly comic effects on all concerned.

College student Sarah Richards is alone in fearing and disliking the new teaching machines but even she does not foresee the terrifying situation that arises when her supervisor, Stephen Kershaw, re-arranges the machines to conform with revised fire regulations.

Julian Clay is accused of murdering Andrew Maddox - a charge he cannot deny because 'The Eye', a device which records the past, saw him do it, However, the law affords one loophole.

Amos Handworthy's grandfather was quick on the draw: as a U.S marshal it was a job requirement if you wanted to stay alive. But now Amos has built a gun-slinging robot, programmed to be a split second slower than him in a gunfight, so that he can perpetuate the myth and glory of his grandfather's frontier past. But will Amos bet his life on a duel with real bullets?

Dr Andrew Cook, inventor of a process for making living replicas of human beings, has unwittingly duplicated himself and becomes a secret weapon in the Solar System's struggle for economic survival against a powerful alien culture, the Sentients.

Dr Saint's offer of a free place in his comfortable old-folks' home appears entirely philanthropic to Miss Claythorpe. However he is suspiciously vague about the treatment that goes with it.

Robot QT-1, aboard an orbiting space-station, controls the massive energy beam which transmits the sun's power to receivers on Earth. But QT-1 (Cutie) has some strange bees in his positronic bonnet. How could weak creatures of protoplasm create a nearly invincible, totally logical entity like himself? It is up to his human supervisors, Powell and Donovan, to convince Cutie of his niche in creation before his new robot theology becomes a threat to all life on Earth.

Professor Monty Lafcado, haunted by the memory of his late mother, sets out to construct a mighty computer in his basement, much to the concern of his friend, Dr Pugh.

Mr Foster and his sister live quietly in the suburbs but are not what they seem, possessing scientific knowledge far in advance of humanity.

The Ship contains a generation, and only one inheritor knows what must be done when the tremor is felt throughout the metal cylinder.

Stephen Chambers, a new master of Warby Stones school for the 'ultra-intelligent boys', finds strange things happening to him. Reason tells him that they must be linked with the boys' Psychic Phenomena Club.

The small East Anglian village of Plampton has one distinction - a famous unsolved murder. A cynical journalist decides to go there to see what he can stir up. But Plampton is a community linked by telepathy and led by a witch.

A man, Harris, wakes up in a hotel on a small island after a shipwreck. He keeps recognising flashes of what he sees, until he realises his visions are of actions yet to come - culminating in murder.

A chance meeting with an old tramp brings a violent force into a young painter's like.

The vengeful spirit of a dead motorcyclist is reluctant to leave his wrecked machine and manifests itself to a woman journalist as motorbike noise.

Why take the Great Circle route to Australia when you can tunnel through the very molecules of the solid earth itself in a TAU-mode shuttle? When a routine TAU-shuttle becomes entombed in solid rock miles under the earth, the only means of rescue may be the wildly experimental LAMBDA-mode shuttle; and even its creator has no idea how it will behave, or whether its pilot can keep his sanity during the rescue mission.

Earth is no more, destroyed by nuclear war; but itinerant handyman Bert Foster, wandering the canals of Mars, is possessed by a restlessness for a home which no longer exists. Perhaps the isolated outpost on Venus retains something which could satisfy this hunger; or has the madness which shattered a world merely settled in a new location?

A team of soldiers break into an enemy missile base. Such is the secrecy of their mission, they have been hypnotically programmed with their orders and will only remember each stage of the operation when they hear a pre-arranged signal. It seems foolproof, but gradually doubt and paranoia begin to overtake them.

Eric and Diana Carver move into a new home in the country, but a series of strange events soon cause Diana to suspect the house is haunted by the ghost of a man. A ghost who seems to be interested in her particularly. She was sexually assaulted when she was a schoolgirl and ever since has had a complex about sex and intimacy. When they call in Dr Philmore, a paranormal expert, he suspects that Diana subconsciously wants to the dominated by this supernatural intruder.

Henry Wilkes cultivates rare tropical plants as a hobby; with an attention to detail which is, perhaps, closer to an obsession. The length to which he goes to propagate and nurture new hybrids alarms his wife. Is there more going on in the greenhouse than could safely be exhibited at the next Battersea Flower Show?

The population of the United Kingdom at the beginning of the 21st Century is static, thanks to computerized population control, but the wife of the Population Officer becomes pregnant for the second time.

An expedition sets out to discover what has happened to a lost colony on a distant planet. Amongst the scientists is a strange, intense teenager called Mark Annuncio, raised to be a kind of human computer, able to make connections between different specialisms. Disliked by the crew, Mark nevertheless may be the only person capable of saving the ship when they land and scientists begin dying mysteriously.

On Jupiter's moon Ganymede, an alien life-form has taken over the body of a human astronaut, creating an almost perfect copy. But perfect enough to escape discovery on the long return trip to Earth? Can the deadly counterfeit be detected and stopped before its hunger for new life can endanger an entire planet?

On his thirty-seventh mission, Commandant Tom Decker and his colleague Ensign Warner-Carr become alarmed at what they find when their spaceship lands on Planet 0243/B.