General J.F. Tiempo, the Commander of the Western Regional World Defence Government, is submitted to the Mysteron's next punishment target, and the doctor who will perform a major and much-required operation on Tiempo is eradicated during a dramatic car crash involving Captain Black, and reconstructed by the Mysterons.

Spectrum are still befuddled on how the force have declared their act of retaliation as to ""kill time"", but Captain Magenta eventually cracks the dilemma and an elaborate game is underway by the Spectrum personnel, in order to trap the person who will take the life of the General, but two advantaging surprises are about to be opened by the Spectrum officers, which will undoubtedly assist them immensely in their contemporary battle with the Mysterons.

But, what they don't realise, is that the doctor who will pefrom the neurosurgery operation on the General is a Mysteron killer.

Two models, eager to make their names publicised and internationally-known in France, are killed in a dramatic staged monorail-train crash, while en route to the countries' capital Paris, and are rebuilt by the Mysterons, in a bid to assassinate Andre Verdain, owner of the ""House of Verdain"", a top modelling & fashion design company, which keeps his real occupation as the controller of the European Area Intelligence Service a confidential secret.

Captains Scarlet and Blue, along with angels Symphony and Destiny are assigned to act as French newspaper photographers and stunning, attractive models, in order to guard Verdain from any Mysteron attacks, but they are absolutely oblivious of the presence of the two female model doppelgangers.

The Chief Test-Pilot of Slaton Air Base is killed and reconstructed in a staged car crash by Captain Black, but when two medical doctors pass by, they recover the test-pilots' original body, named Major Gravener, from the lake where the car ditched in, and successfully resuscitate him in a recovery constitute.

Following this miracle, the Mysteron Major Gravener attempts to leave Slaton Air Base in a fighter jet, armed with a live nuclear warhead, but is stopped in-time when the base office is contacted by the hospital who revived the real Gravener.

With Spectrum investigating the Mysterons' latest threat concerning the annihilation of the world capital, Futura City, they are alerted about the bewildering incident and use the real Gravener in a risky operation, as bait, to discover if the Mysteron's will fall for the Major Gravener, and spring a net on the wanted Captain Black, even when the Mysteron doppelganger is already dead.

Spectrum are involved with the safe, quiet transportation of escorting the world's leading astrophysicist, Doctor Congrad, to a Switzerland-located conference with the World President at Lake Toma.

After boarding their mysteriously-empty flight, which could possibly be due to it being the ""slack"" season, with planes flying usually 3/4 empty, but with no hostesses around, Captains Scarlet and Blue become suspicious, and realise that they are trapped on-board the airliner, along with two tagging-along, & over-confident news-reporters, when learning there isn't any pilots flying the machine, immediately suspecting the Mysterons are controlling it.

But that's not the least of their worries when the plane starts to descend rapidly, and its nose pointing straight in the direction of the French Alps.