2 Seasons

Episode

The Mysterons (1967)

2068 A.D. â€“ Captain Black, an highly-regarded senior agent of the world security organisation, Spectrum, makes an uncanny mistake while conducting a research discovery mission on Mars, trying to evaluate where a set of mysterious signals have been originating from. But while doing so, he mistakes a surveillance device for a defence weapon, when discovering a massively-scaled, futuristic complex, built and controlled by an unknown force, who specifically call themselves ""The Mysterons"". Unintentionally destroying the peaceful colony, Black is taken over by the hostile power, and from there on, will be the Mysterons' primary instrument to devise their acts of retaliation, swearing upon their declaration that they will annihilate all life on Earth and will unleash a very extensive war of nerves upon the innocent planet. To make their unveiling statement known, they plan to kill the World President, and in order to accomplish their first attack; the Mysterons cause the car which Captains S

Directed By: Desmond Saunders
Writer: Sylvia Anderson

Winged Assassin (1967)

A Mysteron sniper performs an unsuccessful attempt on the forces' new target: The Director General of the United Asian Republic, with Captain Grey arriving in the nick of time, and succeeding in disposing of the eavesdropping gunman. From there on, all personnel from Cloudbase and Spectrum H.Q. â€“ London, along with the recovering Captain Scarlet, and his original partner Captain Blue, are dispatched to protect the Director General at all costs, whom has made arrangements to return to his home country. But the Spectrum officers are completely unaware of the inbound Mysteron-reconstructed civilian Stratojet airliner, the enemies' tool to fix and complete their assassination upon the important international foreign figure.

Directed By: David Lane
Writer: Tony Barwick

Big Ben Strikes Again (1967)

In the centre of London, the capital of England, a double police-escorted transporter, carrying a nuclear explosive device, built for civilian use, seemingly goes out of control, shaking of its' motor guards and its driver regaining conscience in a back alley. The transporter, now in the remote-controlled possession of the Mysterons, has been hidden in an under construction car park. Captains Scarlet and Blue are assigned to investigate the drivers' mysterious discovery, that the famous Big Ben clock struck 13 times, which may be a clue to finding the transporter, before it destroys the whole of Central London. However, the driver's founding's are more than unreliable due to his perplexed state of memory.

Directed By: Brian Burgess
Writer: Tony Barwick

Manhunt (1967)

At the Culver Atomic Centre, located in Yorkshire, England, Captain Black accidentally exposes himself to a short-term radioactive isotope, when detected by the security guards, causing his hesitation. Although the isotope is physically harmless, it makes him a straight-forward target when using radiation-tracking systems during Spectrum's full-scale manhunt, to uncover and apprehend the Mysteron agent. But when the organisation is decoyed, Black manages to kidnap Symphony Angel, who disobeys direct orders from Colonel White. Instead of maintaining her aerial surveillance mission, she finds herself on death-row, in a radiation chamber, and Black in absolute control, with the judgment of killing her, or letting her go free.

Directed By: Alan Perry
Writer: Tony Barwick

Avalanche (1967)

The Frost Line Outer Defence Base Network, is endangered by the Mysterons when they destroy a maintenance truck, murdering it's engineer/driver in the process, as a cover to infiltrate the defence bases sited in Northern Canada, where the Mysteronised engineer intends to proceed in removing all oxygen from the bases' self-contained atmosphere. With bases' ""Red Deer"" and ""Carriboo"" already taken down, the next base in the ring, ""Big Bear"", is the Mysterons' final target, but if the base is attacked also, the commander-in-chief of the defence network plans to commence a vengeful missile strike on Mars, where the main Mysteron complexes are established. Colonel White desperately wants to prevent this from happening, and so, he assigns Lieutenant Green to his first off-base, ""in-the-field"" assignment, along with Captain Scarlet, to evaluate just how the bases are being cut off, and stop the maintenance engineer from triggering off a global disaster.