Tailing the Paradox, Dr. Agon’s falcon, Trump, is sucked into a black hole and grows to gigantic size. The giant falcon attacks the Paradox, but accidentally swallows the half-timbered starship and Captain Thrice and his crew find themselves trapped in the giant bird’s belly!
Dr. Beaker films Supercar in action, and receives illegal footage of secret organisations.
Zodiac almost falls victim to sabotage at a Space City circus as part of a scheme by Mr and Mrs Space Spy to help alien nomads take over Earth.
While racing to apprehend a foreign assassin called Sakov, who has checked in to Greenways health clinic on the pretext of receiving experimental therapy, Unwin is unaware that his target has designs on the new additive chemical GK2, which when mixed with water produces a lethal compound as combustible as high-octane fuel.
Troy is poisoned by the Aquaphibians and Titan, who possesses the antidote, demands Marina in exchange for saving his life.
A space capsule escape pod from the Endeavor II , a manned mission to Jupiter which mysteriously disappeared fifteen years ago, returns to Earth with Lieutenant Green's father, Commander Lewis, aboard. Believed lost, he wastes no time catching up with his daughter, but when he arrives for his debriefing at the International Space Agency, he is revealed as a Mysteron agent and takes Green hostage inside a bunker containing an antimatter reactor that is rigged to blow, leaving nothing but a smokin...
Foster is stranded on the Moon's surface, where he befriends a similarly stranded alien.
A French intelligence chief, known publicly as a leading fashion designer, is targeted by Mysteron reconstructions of two of his models.
Joe is given his father's brain pattern and they share a dream, revolving around a madcap rally race from London to Monte Carlo.
Anonymous alien benefactors provide the wandering Moon with a breathable atmosphere. The Alphans rejoice as they realise they have a wonderful new home in their own backyard. Preparations are made to settle and begin building a new civilisation on the Moon's surface. Koenig is suspicious of the aliens' motives, wondering how long this generous gift will last.
Harry is blackmailed into carrying out the assassination of a Middle Eastern leader he has been hired to protect.
Tex's old friend, Cass Morgan, arrives in town looking for two men, Tobin and Billy Pinto, who he says killed his brother during a robbery. He tells Tex to stay out of it which he does until a telegram arrives telling Tex who the real killer is.
Torchy encounters Bogey drowning his pirate toy, Pongo, in the pond, so he decides to bring him back to Topsy Turvy Land. Once there, Daffy decides to give the boy his comeuppance by submerging him in the water. Meanwhile, Pongo discovers he likes this strange new world and has no intention of ever leaving.
Brains and Tin-Tin set off on an expedition to retrieve sunken treasure from Lake Anasta. The Hood has also set his sights on the riches and plans to put both Brains and Tin-Tin in grave peril.
Ninestein enters an old-fashioned gun fight with one of Zelda's Cubes in the Arizona desert.
The Stingray crew are captured by undersea villains attempting to obtain information on Marineville's defence systems.
Zodiac and a geologist attempt to solve the mysteries of the seemingly deserted planet Electron, which is replete with electric rocks and weird, poltergeistic happenings.
A bathyscaphe is trapped in the deepest point in the Pacific.
Jane and Took are assigned to protect a shipment of Luxorian Ice, a vital part of Solartek's new solar power system which offers a safe alternative to hyper fusion. Meanwhile, Brogan and Haldane investigate the death of reformed jewel thief Vella Sugoi and discover a connection that leads to a deadly struggle for control of Demeter's lucrative energy franchise.
After several cases of random suicides, an investigation into the latest one leads Captain Blue to inadvertently upload a virus to Skybase's computers. Everyone on the base apart from Captain Scarlet and Destiny Angel are infected by the deadly virus which makes people end their own lives. Scarlet and Destiny must erase the virus before they too become infected.
The Mysterons threaten to kill one of Spectrum's Angel pilots.
The Protectors find themselves in the middle of a war over some antiques.
Rocky has a toothache, but nothing anyone says can persuade him to have his tooth removed by Doc Haggerty.
The Moon is on a collision course with an enormous planet. On a scouting mission, Koenig encounters Arra, the Queen of Atheria. The aged monarch proclaims the collision is a preordained event and must occur for her people to evolve to a higher plane of existence. Now Koenig must convince his crew to have faith and do nothing in the face of apparent destruction.
A malfunctioning solar reflector menaces the Italian coastal village of Monte Bianco, where Lady Penelope and Parker happen to be visiting while on holiday.
The Stingray crew investigate a disused lighthouse emitting unexplained signals.
As part of a criminal operation to seize £1 million in bank notes en route to London, the train carrying the shipment is diverted to the disused Buffler's Halt Station. Unwin and Matthew help to subdue the gang responsible. However, on the way back up the line, stationmaster Albert Hobson realises that he cannot stop the train, which is travelling at 80 miles per hour.
SHADO officially goes into operation and encounters its first UFO. An alien pilot is captured and discovered to have transplanted human organs within him.
Clip show episode: Joe reaches his tenth birthday, and celebrates with his friends as they reminisce over his many adventures.
The Terrahawks struggle to defend against the aliens' strange powers, and find they may be forced to stop the attack at the cost of Ninestein's life.
