A group of terrorists posing as plumbers set up base at a school for the blind. The students remain blissfully unaware while the terrorists plan the assassination of a politician who will soon be passing the school on a parade route. Only one student, Sally, suspects that the men upstairs may be dangerous...

An American jazz pianist, blinded in a London bank robbery ten years before, makes his first return appearance in England at an engangement party where he believes he hears the voice of the gunman who cost him his sight.

After an atomic explosion blasts the Moon out of Earth orbit, Moonbase Alpha drifts in space, with 300 people on board. When a rescue team from Earth arrives in a faster-than-light space ship, everyone is overjoyed that they can now return to Earth. But Moonbase Commander John Koenig, having undergone an experimental brain soothing process after receiving a concussion in a crash on the Lunar surface, sees not friends from Earth but gruesome monsters which have telepathically caused all others on Alpha to see an illusion of an Earth party. The aliens are desperate for radiation and plan to manipulate the Alphans into detonating nuclear waste on the Lunar surface, reducing the Moon and everyone on it to dust. Koenig must expose this conspiracy to save his people. Compiled from the two part episode The Bringers Of Wonder from the TV series Space: 1999's second series.

When compulsive gambler Sir Giles Staverley has lost his estate and all his money playing dice, he realises that he only has one thing left of value: his daughter Serena. In a final game, he stakes his daughter's hand in marriage, convinced that this time he will not lose. Unfortunately, however, he does lose; to the evil Lord Wrotham. Unable to return home and tell his daughter that he has lost her in a game of dice, Sir Giles kills himself there and then. Lord Vulcan, who has witnessed the events, takes pity on Serena Staverley, although they have never met. He challenges Lord Wrotham to a game of dice in which the winner takes both Staverley Court and Miss Serena.

After a scientific experiment goes horribly wrong during a demonstration, a scientist finds himself trapped in an alternate reality that bears some similarities to our own, but also has some striking differences. In this other reality the Second World War had never occurred, mankind had not yet traveled into Space and Mt. Everest had not yet been conquered, just to name a few things. Also in this other reality he is no longer a scientist but rather a well known author. After a personal tragedy in this alternate world, he finds himself back in his own world and desperately trying to locate the woman he fell in love with in the other world. Little does she know, however, that her life depends on him finding her.