While Christmas preparations are underway at both Tracy Island and a local children's hospital, which is expanding to incorporate a new radiotherapy wing, a pair of criminals attempt to burgle a high-tech vault storing gold bullion.

Tildon Alreeuh, an illegal immigrant from Sagania, saves Brogan's life in a shooting incident, and Brogan learns that his saviour's son, Nillim, is being held by snuff fight promoter Coe Barner. With immigration officials breathing down their necks, the officers of Precinct 88 go undercover at one of Barner's bouts to rescue Nillim, but Brogan soon finds himself fighting for his life.

The link between Harry the Human Cannonball and a number of flying Mexicans in town leads Dick Spanner P.I. down Mexico way and into the circus, where he discovers the secret of the 'The Fatman'.

When Dick Spanner P.I. learns that Harry the Human Cannonball has gone missing (after he was fired), it can only mean one thing - trouble! During his investigations the persistent Lieutenant O'Grady tries to throw him in jail, 'The Fatman' gives Spanner some advice, Sidney Sidestreet offers no help at all and the villainous goons who work for the mysterious Mendoza try to kill him.

In need of a new battery, Torchy returns home with Pom-Pom in tow. After Mr. Bumbledrop and the pooch head off to the store, Torchy decides to follow, but his battery wears down and he collapses on the road. Moments later, Mrs. Meaniemouth finds Torchy and decides to bring him home as a present for Bogie, despite Mr. Bumbledrop's pleas from a distance. After the Meaniemouths head off to buy a new battery for their stolen toy, Mr. Bumbledrop and Pom-Pom sneak into their house to retrieve him.

An outbreak of race riots and hate crimes against Xyronite immigrants is being coordinated by Burl Flak, wanted for murder on Danae. Brogan and Haldane are assigned to find Flak and stop the killings, but their investigations are hampered by the appearance of Erika Brandt, a bounty hunter intent on claiming the price on Flak's head, who just happens to be one of Brogan's old flames.

Seeking a mineral, Koenig and his expedition team are trapped on a desert planet whose dominant life form is a rock that is thirsty for liquid water.

Joe is unintentionally given the brain pattern of a double agent for a mission to protect top-secret WIN cipher codes.

While Koenig and Tony investigate a derelict spaceship, the Moon passes through a space warp; at the same time, Maya is stricken by a fever and loses metamorphic control, becoming beasts the Alphans cannot manage, while they wait and hope Koenig and Tony will find their way to the space warp to rejoin them.

In the Scottish Highlands, an elderly lady named Mrs. Mackenzie is alarmed to see green lights hovering over the nearby Grampian Nuclear Power Station; she reports the incident to the authorities, but no one believes her. When Colonel White learns of the incident he immediately sends Captain Scarlet and Harmony Angel to investigate. But that turns out to be just what the Mysterons want as the Spectrum Rhino ground vehicle is just what they need to breach the reactor's defenses.