Masterspy and Zarin tap a telephone cable that runs across the Atlantic.

A man appears claiming to be God and proceeds to select two couples from the Alphans to populate a new earth.

Tex is away visiting family and the marshal filling in for him, Ike Burns, is hopelessly ineffective. But the sheriff's a crook and is not a real lawman and is secretly in league with Big Ben and another outlaw called Johnny.

Explosions at desalination plants in Africa and Burgossa point to sabotage. Rushing to the last surviving facility in Port Trennick, Unwin and Matthew find themselves in a race against time to prevent its destruction.

While searching for the submerged temple of Tajmanon in Africa, Troy and Phones encounter an old enemy.

The Mysterons target London with a stolen nuclear bomb.

After Major Graffa is possessed by the alien meteor found buried beneath Roetem Towers, Captain Weldon steals the meteor fragment that landed at Butler's farm and goes AWOL. She kidnaps Brogan to enlist his help in recovering the meteor from Graffa, but Carson learns that the meteor is a parasitic alien seed and the meteor fragment is a spore to fertilise it – bringing them together will destroy all life on Altor!

The arrival on Altor of a mysterious meteor fragment heralds the start of strange events at Roetem Towers on Krazucki Street where residents are being terrorised into relocation. As Jane and Took look into the disappearance of an alien farmer, Brogan and Haldane find their investigations at Roetem Towers blocked by Military Intelligence, and Brogan realises that something is going on at the apartment building that threatens all life on Altor.

Out of fuel, the Paradox crash lands in the swamp on planet Quagmire, close to the Dank’s shack. The suspicious Dank refuses to help the stranded crew until Captain Thrice challenges him to a banjo picking contest. If Thrice wins, the Dank will help, but if he loses, the Paradox will belong to the Dank.

Captain Black claims he is free of the Mysterons' control and suggests Scarlet return with him to Mars in a daring plan to destroy the Mysteron complex. Can Black really can be trusted – or is Scarlet being led into a final, lethal trap?